TBD Meeting (3205-20)

The all-consuming news about SARS-CoV-2 and COVID-19 has overshadowed other viral pathogens that are the cause of severe or fatal lower respiratory infections (LRI) including human metapneumovirus (HMPV).

“MPV is really a leading cause of LRI not just in children but in adults, with high mortality rates in the frail elderly, long-term care facilities, and cancer patients with pneumonia, “ said John Williams, MD, from the department of pediatric infectious diseases at the University of Pittsburgh Medical Center.

“Right now we have no effective antivirals. There are monoclonal antibodies in development that my group and others have discovered. In fact, some of these treat MPV and RSV [respiratory syncytial virus], so we may have good options,” he said in an online presentation during an annual scientific meeting on infectious diseases.

The virus preys, wolf-like, on the most vulnerable patients, including children and frail elderly adults, as well as other adults with predisposing conditions, he said.

HMPV causes acute respiratory illnesses in approximately 2%-11% of hospitalized adults, 3%-25% of organ transplant recipients or cancer patients, 4%-12% of chronic obstructive pulmonary disease exacerbations, 5%-20% of asthma exacerbations, and it has been identified in multiple outbreaks at long-term care facilities.


 

Relative newcomer

Metapneumovirus was isolated and discovered from children with respiratory tract disease in the early 2000s. Once included in the family of paramyxoviruses (including measles, mumps, Nipah virus, and parainfluenza virus 1-4), HMPV and RSV are now classified as pneumoviruses, based on gene order and other characteristics, Dr. Williams explained.

Various studies have consistently placed the prevalence of HMPV ranging from 5%-14% in young children with LRI, children hospitalized for wheezing, adults with cancer and LRI, adults with asthma admissions, children with upper respiratory infections, and children hospitalized in the United States and Jordan for LRI, as well as children hospitalized in the United States and Peru with acute respiratory infections.

A study tracking respiratory infections in a Rochester, N.Y., cohort from 1999 through 2003 showed that healthy elderly patients had and annual incidence of HMPV infections of 5.9%, compared with 9.1% for high-risk patients, 13.1% for young patients, and 8.5% among hospitalized adult patients.

“These percentages are virtually identical to what has been seen in the same cohort for respiratory syncytial virus, so in this multiyear prospective cohort, metapneumovirus was as common as RSV,” Dr. Williams said.

Although the incidences of both HMPV and RSV were lower among hospitalized adults “clinically, we can’t tell these respiratory viruses apart. If we know it’s circulating we can make a guess, but we really can’t discriminate them,” he added.

In the Rochester cohort the frequency of clinical symptoms – including congestion, sore throat, cough, sputum production, dyspnea, and fever – were similar among patients infected with HMPV, RSV, or influenza A, with the exception of a slightly higher incidence of wheezing (80%) with HMPV, compared with influenza.

“I can tell you as a pediatrician, this is absolutely true in children, that metapneumovirus is indistinguishable from other respiratory viruses in kids,” he said.
 

Fatalities among older adults

As noted before, HMPV can cause severe and fatal illness in adults. For example, during an outbreak in North Dakota in 2016, 3 of 27 hospitalized adults with HMPV (median age, 69 years) died, and 10 required mechanical or noninvasive ventilation.

In a study from Korea comparing outcomes of severe HMPV-associated community-acquired pneumonia (CAP) with those of severe influenza-associated CAP, the investigators found that 30- and 60-day mortality rates were similar between the groups, at 24% of patients with HMPV-associated CAP and 32.1% for influenza-associated CAP, and 32% versus 38.5%, respectively.

Patients at high risk for severe disease or death from HMPV infection include those over 65 years, especially frail elderly, patients with chronic obstructive pulmonary disease, immunocompromised patients, and those with cardiopulmonary diseases such as congestive heart failure.
 

Supportive care only

“Do we have anything for treatment? The short answer is, No,” Dr. Williams.

Supportive care is currently the only effective approach for patients with severe HMPV infection.

Ribavirin, used to treat patients with acute RSV infection, has poor in vitro activity against HMPV and poor oral bioavailability and hemolysis, and there are no randomized controlled trials to support its use in this situation.

“It really can’t be recommended, and I don’t recommend it,” he said.
 

Virology may still help

Mark J. Siedner, MD, an infectious diseases physician at Mass General and associate professor of medicine at Harvard Medical School, both in Boston, who was not involved in the study, said that, despite the inability to clinically distinguish HMPV from RSV or influenza A, there is still clinical value to identifying HMPV infections.

“We spend millions of dollar each year treating people for upper respiratory tract infections, often with antibacterials, sometimes with antivirals, but those have costs to the health care system, and they also have costs in terms of drug resistance,” he said in an interview seeking objective commentary.

“Diagnostic tests that determine the actual source or the cause of these upper respiratory tract infections and encourage both patients and physicians not to be using antibiotics have value,” he said.

Identifying the pathogen can also help clinicians take appropriate infection-control precautions to prevent patient-to-clinician or patient-to-patient transmission of viral infections, he added.

Dr. Williams’ research is supported by the National Institutes of Health, Henry L. Hillman Foundation, and Asher Krop Memorial Fund of Children’s Hospital of Pittsburgh. Dr. Williams and Dr. Siedner reported no relevant conflict of interest disclosures.

The all-consuming news about SARS-CoV-2 and COVID-19 has overshadowed other viral pathogens that are the cause of severe or fatal lower respiratory infections (LRI) including human metapneumovirus (HMPV).

“MPV is really a leading cause of LRI not just in children but in adults, with high mortality rates in the frail elderly, long-term care facilities, and cancer patients with pneumonia, “ said John Williams, MD, from the department of pediatric infectious diseases at the University of Pittsburgh Medical Center.

“Right now we have no effective antivirals. There are monoclonal antibodies in development that my group and others have discovered. In fact, some of these treat MPV and RSV [respiratory syncytial virus], so we may have good options,” he said in an online presentation during an annual scientific meeting on infectious diseases.

The virus preys, wolf-like, on the most vulnerable patients, including children and frail elderly adults, as well as other adults with predisposing conditions, he said.

HMPV causes acute respiratory illnesses in approximately 2%-11% of hospitalized adults, 3%-25% of organ transplant recipients or cancer patients, 4%-12% of chronic obstructive pulmonary disease exacerbations, 5%-20% of asthma exacerbations, and it has been identified in multiple outbreaks at long-term care facilities.


 

Relative newcomer

Metapneumovirus was isolated and discovered from children with respiratory tract disease in the early 2000s. Once included in the family of paramyxoviruses (including measles, mumps, Nipah virus, and parainfluenza virus 1-4), HMPV and RSV are now classified as pneumoviruses, based on gene order and other characteristics, Dr. Williams explained.

Various studies have consistently placed the prevalence of HMPV ranging from 5%-14% in young children with LRI, children hospitalized for wheezing, adults with cancer and LRI, adults with asthma admissions, children with upper respiratory infections, and children hospitalized in the United States and Jordan for LRI, as well as children hospitalized in the United States and Peru with acute respiratory infections.

A study tracking respiratory infections in a Rochester, N.Y., cohort from 1999 through 2003 showed that healthy elderly patients had and annual incidence of HMPV infections of 5.9%, compared with 9.1% for high-risk patients, 13.1% for young patients, and 8.5% among hospitalized adult patients.

“These percentages are virtually identical to what has been seen in the same cohort for respiratory syncytial virus, so in this multiyear prospective cohort, metapneumovirus was as common as RSV,” Dr. Williams said.

Although the incidences of both HMPV and RSV were lower among hospitalized adults “clinically, we can’t tell these respiratory viruses apart. If we know it’s circulating we can make a guess, but we really can’t discriminate them,” he added.

In the Rochester cohort the frequency of clinical symptoms – including congestion, sore throat, cough, sputum production, dyspnea, and fever – were similar among patients infected with HMPV, RSV, or influenza A, with the exception of a slightly higher incidence of wheezing (80%) with HMPV, compared with influenza.

“I can tell you as a pediatrician, this is absolutely true in children, that metapneumovirus is indistinguishable from other respiratory viruses in kids,” he said.
 

Fatalities among older adults

As noted before, HMPV can cause severe and fatal illness in adults. For example, during an outbreak in North Dakota in 2016, 3 of 27 hospitalized adults with HMPV (median age, 69 years) died, and 10 required mechanical or noninvasive ventilation.

In a study from Korea comparing outcomes of severe HMPV-associated community-acquired pneumonia (CAP) with those of severe influenza-associated CAP, the investigators found that 30- and 60-day mortality rates were similar between the groups, at 24% of patients with HMPV-associated CAP and 32.1% for influenza-associated CAP, and 32% versus 38.5%, respectively.

Patients at high risk for severe disease or death from HMPV infection include those over 65 years, especially frail elderly, patients with chronic obstructive pulmonary disease, immunocompromised patients, and those with cardiopulmonary diseases such as congestive heart failure.
 

Supportive care only

“Do we have anything for treatment? The short answer is, No,” Dr. Williams.

Supportive care is currently the only effective approach for patients with severe HMPV infection.

Ribavirin, used to treat patients with acute RSV infection, has poor in vitro activity against HMPV and poor oral bioavailability and hemolysis, and there are no randomized controlled trials to support its use in this situation.

“It really can’t be recommended, and I don’t recommend it,” he said.
 

Virology may still help

Mark J. Siedner, MD, an infectious diseases physician at Mass General and associate professor of medicine at Harvard Medical School, both in Boston, who was not involved in the study, said that, despite the inability to clinically distinguish HMPV from RSV or influenza A, there is still clinical value to identifying HMPV infections.

“We spend millions of dollar each year treating people for upper respiratory tract infections, often with antibacterials, sometimes with antivirals, but those have costs to the health care system, and they also have costs in terms of drug resistance,” he said in an interview seeking objective commentary.

“Diagnostic tests that determine the actual source or the cause of these upper respiratory tract infections and encourage both patients and physicians not to be using antibiotics have value,” he said.

Identifying the pathogen can also help clinicians take appropriate infection-control precautions to prevent patient-to-clinician or patient-to-patient transmission of viral infections, he added.

Dr. Williams’ research is supported by the National Institutes of Health, Henry L. Hillman Foundation, and Asher Krop Memorial Fund of Children’s Hospital of Pittsburgh. Dr. Williams and Dr. Siedner reported no relevant conflict of interest disclosures.

The all-consuming news about SARS-CoV-2 and COVID-19 has overshadowed other viral pathogens that are the cause of severe or fatal lower respiratory infections (LRI) including human metapneumovirus (HMPV).

“MPV is really a leading cause of LRI not just in children but in adults, with high mortality rates in the frail elderly, long-term care facilities, and cancer patients with pneumonia, “ said John Williams, MD, from the department of pediatric infectious diseases at the University of Pittsburgh Medical Center.

“Right now we have no effective antivirals. There are monoclonal antibodies in development that my group and others have discovered. In fact, some of these treat MPV and RSV [respiratory syncytial virus], so we may have good options,” he said in an online presentation during an annual scientific meeting on infectious diseases.

The virus preys, wolf-like, on the most vulnerable patients, including children and frail elderly adults, as well as other adults with predisposing conditions, he said.

HMPV causes acute respiratory illnesses in approximately 2%-11% of hospitalized adults, 3%-25% of organ transplant recipients or cancer patients, 4%-12% of chronic obstructive pulmonary disease exacerbations, 5%-20% of asthma exacerbations, and it has been identified in multiple outbreaks at long-term care facilities.


 

Relative newcomer

Metapneumovirus was isolated and discovered from children with respiratory tract disease in the early 2000s. Once included in the family of paramyxoviruses (including measles, mumps, Nipah virus, and parainfluenza virus 1-4), HMPV and RSV are now classified as pneumoviruses, based on gene order and other characteristics, Dr. Williams explained.

Various studies have consistently placed the prevalence of HMPV ranging from 5%-14% in young children with LRI, children hospitalized for wheezing, adults with cancer and LRI, adults with asthma admissions, children with upper respiratory infections, and children hospitalized in the United States and Jordan for LRI, as well as children hospitalized in the United States and Peru with acute respiratory infections.

A study tracking respiratory infections in a Rochester, N.Y., cohort from 1999 through 2003 showed that healthy elderly patients had and annual incidence of HMPV infections of 5.9%, compared with 9.1% for high-risk patients, 13.1% for young patients, and 8.5% among hospitalized adult patients.

“These percentages are virtually identical to what has been seen in the same cohort for respiratory syncytial virus, so in this multiyear prospective cohort, metapneumovirus was as common as RSV,” Dr. Williams said.

Although the incidences of both HMPV and RSV were lower among hospitalized adults “clinically, we can’t tell these respiratory viruses apart. If we know it’s circulating we can make a guess, but we really can’t discriminate them,” he added.

In the Rochester cohort the frequency of clinical symptoms – including congestion, sore throat, cough, sputum production, dyspnea, and fever – were similar among patients infected with HMPV, RSV, or influenza A, with the exception of a slightly higher incidence of wheezing (80%) with HMPV, compared with influenza.

“I can tell you as a pediatrician, this is absolutely true in children, that metapneumovirus is indistinguishable from other respiratory viruses in kids,” he said.
 

Fatalities among older adults

As noted before, HMPV can cause severe and fatal illness in adults. For example, during an outbreak in North Dakota in 2016, 3 of 27 hospitalized adults with HMPV (median age, 69 years) died, and 10 required mechanical or noninvasive ventilation.

In a study from Korea comparing outcomes of severe HMPV-associated community-acquired pneumonia (CAP) with those of severe influenza-associated CAP, the investigators found that 30- and 60-day mortality rates were similar between the groups, at 24% of patients with HMPV-associated CAP and 32.1% for influenza-associated CAP, and 32% versus 38.5%, respectively.

Patients at high risk for severe disease or death from HMPV infection include those over 65 years, especially frail elderly, patients with chronic obstructive pulmonary disease, immunocompromised patients, and those with cardiopulmonary diseases such as congestive heart failure.
 

Supportive care only

“Do we have anything for treatment? The short answer is, No,” Dr. Williams.

Supportive care is currently the only effective approach for patients with severe HMPV infection.

Ribavirin, used to treat patients with acute RSV infection, has poor in vitro activity against HMPV and poor oral bioavailability and hemolysis, and there are no randomized controlled trials to support its use in this situation.

“It really can’t be recommended, and I don’t recommend it,” he said.
 

Virology may still help

Mark J. Siedner, MD, an infectious diseases physician at Mass General and associate professor of medicine at Harvard Medical School, both in Boston, who was not involved in the study, said that, despite the inability to clinically distinguish HMPV from RSV or influenza A, there is still clinical value to identifying HMPV infections.

“We spend millions of dollar each year treating people for upper respiratory tract infections, often with antibacterials, sometimes with antivirals, but those have costs to the health care system, and they also have costs in terms of drug resistance,” he said in an interview seeking objective commentary.

“Diagnostic tests that determine the actual source or the cause of these upper respiratory tract infections and encourage both patients and physicians not to be using antibiotics have value,” he said.

Identifying the pathogen can also help clinicians take appropriate infection-control precautions to prevent patient-to-clinician or patient-to-patient transmission of viral infections, he added.

Dr. Williams’ research is supported by the National Institutes of Health, Henry L. Hillman Foundation, and Asher Krop Memorial Fund of Children’s Hospital of Pittsburgh. Dr. Williams and Dr. Siedner reported no relevant conflict of interest disclosures.

The age of antiretroviral therapy (ART) for HIV is in its third decade, and many of the patients who live in areas of the world fortunate enough to have had early access to therapy have now lived for several decades with complications of HIV and viral suppressive therapy.

But while the life-expectancy of persons with HIV has approached that of noninfected persons over the last 20 years, the higher burden of comorbidities for aging patients with HIV has remained largely the same, according to an epidemiologist who specializes in HIV/AIDS research and aging.

“The pathways from HIV and its treatments to comorbidities are very long and winding, spanning a life course. Social determinants of health and individual risk factors also play an important role, and must be considered,” said Keri N. Althoff, PhD, MPH, of Johns Hopkins University, Baltimore.

Dr. Althoff discussed long-term complications of HIV and its treatment in a virtual symposium during an annual scientific meeting on infectious diseases.

“Many urban HIV providers have an increased proportion of patients who are older long-term survivors of the epidemic. Many, but not all of the comorbidities (including cardiovascular, neurocognitive, renal, and malignancies) have been associated with age, long-term HIV infection, especially uncontrolled HIV infection, and low CD4 nadirs,” commented Harry Lampiris, MD, professor of clinical medicine at the University of California, San Francisco.

“An increasing number of patients are experiencing geriatric syndromes (especially problems with mobility, cognitive decline, food insecurity, polypharmacy, and social isolation) at younger ages than HIV-negative populations,” he added.

Dr. Lampiris, who moderated the session where Dr. Althoff presented her findings, commented on it in an interview, but was not involved in her research.
 

Pathways to comorbidity

The three primary pathways to comorbidities in people with HIV infections are as follows, according to Dr. Athloff:

• The virus itself, with its associated inflammation, immunosuppression, immune activation, and AIDS.
• HIV therapies, beginning with the notoriously toxic dideoxynucleoside analogues or “d-drugs,” and following with subsequent generations of newer, less toxic agents.
• Individual risk factors, including smoking, stress, diet, exercise, and environment.

Cardiovascular and renal complications

Persons with HIV have an approximately twofold higher risk for major adverse cardiovascular events (myocardial infarction, stroke) compared with persons without HIV. Conditions contributing to cardiovascular disease including hypertension, diabetes, and hyperlipidemia are also significantly higher among persons with HIV, Dr. Althoff said.

Hypertension among persons with HIV from the ages 60-69 years is especially high for Black men and to a lesser degree non-Black men, compared with either White or Black women, she noted.

Pathways to renal disease in persons with HIV include diabetes and hypertension, as well as therapies to treat them, hepatitis B and C coinfection, HIV-associated nephropathy, and immune complex kidney disease, as well as chronic kidney disease resulting from acute kidney injury related to therapy.

“Cardiovascular disease and kidney disease are excellent examples of why the life-course perspective is essential when caring for people with HIV. For those diagnosed with HIV at younger ages, there are points of intervention along the decades-long path, and the timing and implementation of the most effective intervention may preserve comorbidity-free years,” Dr. Althoff said.

Prevention and screening interventions to lower risk for future heart- and kidney-related comorbidities include smoking cessation and lifestyle optimization (diet, exercise, mental health), as well as lipid-lowering medications to lower risk for cardiovascular events.
 

Liver comorbidities

“Primary drivers of liver disease are social determinants of health and individual lifestyle risk factors that share the same pathways as HIV, resulting in this increased burden of liver disease in people with HIV,” she said.

Risk factors include alcoholic liver disease, nonalcoholic fatty liver disease, hepatitis B and C coinfection, drug use, autoimmune disease, and aging. These risk factors contribute to oxidative stress, mitochondrial injury, lipotoxicity, cytotoxicity, and other mechanisms that can lead to fibrosis, cirrhosis, hepatocellular carcinoma, and end-stage liver disease.

“I want to be sure to acknowledge the importance of liver disease as a comorbidity among people with HIV. Liver disease accounts for nearly 20% of mortality in persons with HIV,” she said.
 

Neurocognitive problems

HIV has been linked to neurocognitive decline since the beginning of the epidemic, Dr. Althoff noted. The term HIV-associated neurocognitive disorders encompasses the broad spectrum of cognitive effects of HIV, from asymptomatic illness to AIDS-related dementia. Estimates of cognitive impairment in people with HIV range from 14% to 64% across various study populations, but diagnosing and treating it in the community can be challenging.

“Routine monitoring of cognition is often just out of reach in the clinical setting, due to the time it takes to use validated tools. We need a deeper toolbox of quick and validated tools calibrated to people with HIV in order to accurately monitor cognition,” she said.

She noted that the average age of onset of Alzheimer’s disease in the general population is 80 years, and that relatively few people with HIV infection have reached that age.

“But before the population age distribution shifts to the older ages, we can do more to monitor cognition in people with HIV,” she added.

In addition to HIV, factors that can contribute to worse neurocognitive outcomes include major depressive disorder, occurring in and estimated 20%-40% of adults with HIV versus 8% of the U.S. population, generalized anxiety disorder (10%-25% vs. 3%), bipolar disorder (3%-9% vs. 3%), schizophrenia (4%-15% vs. 1%), and posttraumatic stress disorder (10%-30% vs. 8%).

Substance use and polypharmacy, common among adults with HIV, can also contribute to cognitive decline, she said.
 

Decreased mobility

The Multicenter AIDS Cohort Study (MACS) showed that decreased mobility, defined as a gait speed less than 1 m/sec, occurred earlier in life among HIV-positive men than in HIV-negative men.

In the general aging population, slow gait speed is a predictor for lower extremity limitations, hospitalization, and death, and in more recent MACS studies was associated with increased hemoglobin A_1C levels, as well as neurocognitive impairment.

“Hemoglobin A_1C is an intervenable target, and perhaps it will help to slow the decline in gait speed,” Dr. Althoff said.
 

Reduce ‘healthspan’ disparities

The goal for treating aging adults with HIV “is to reduce the disparity in healthspan between people with HIV compared to people without HIV by delaying or eliminating the onset of comorbidities among people with HIV,” she said.

The gerontological concept of extending “healthspan” – the duration of life without significant comorbidities – is to target common mechanisms of aging, thereby delaying the onset of more than one age-related disease at the same time.

“Crude translation of this concept to the population of aging with HIV includes reducing that gap in comorbidity-free survival in people with versus without HIV,” she said.

Modification of care models from geriatrics may help infectious disease specialists manage adults with HIV who have increasingly complex needs.

For example, the geriatric “5 M” model emphasizes focusing on issues of mind (mentation, dementia, delirium, depression), mobility (impaired gait and balance, as well as fall prevention), medications (reducing polypharmacy, optimal prescribing), multicomplexity (multiple morbidities and complex bio-psycho-social situations), and “matters most” (each patient’s individual meaningful health outcome goals and care preferences).

Changing exposures that may influence the pattern of comorbidities for patients with HIV in the future include earlier start on ART, shorter duration of uncontrolled viremia, compared with older populations, newer and less toxic ARTs, long-term viral suppression, and risk factor interventions, Dr. Althoff concluded.

Dr. Lampiris noted that “patients who have initiated therapy in the last 5-10 years are more likely to initiate antiretroviral therapy at higher CD4 counts, and less likely to experience long-term toxicities of antiretroviral therapy. However, African Americans, Hispanics and HIV-positive women continue to lag behind others with regard to timely initiation of treatment.

“In addition there are toxicities associated with the newer agents, particularly weight gain, which disproportionately affect African Americans and women and which may be made worse by poverty, food insecurity, and other health-related behaviors.”

Dr. Athloff’s work is supported by grants from the National Institutes for Health. She disclosed serving as a consultant to the NIH-funded All of US study and to MediQ, and as an adviser to TrioHealth. Dr. Lampiris reported having no disclosures.

The age of antiretroviral therapy (ART) for HIV is in its third decade, and many of the patients who live in areas of the world fortunate enough to have had early access to therapy have now lived for several decades with complications of HIV and viral suppressive therapy.

But while the life-expectancy of persons with HIV has approached that of noninfected persons over the last 20 years, the higher burden of comorbidities for aging patients with HIV has remained largely the same, according to an epidemiologist who specializes in HIV/AIDS research and aging.

“The pathways from HIV and its treatments to comorbidities are very long and winding, spanning a life course. Social determinants of health and individual risk factors also play an important role, and must be considered,” said Keri N. Althoff, PhD, MPH, of Johns Hopkins University, Baltimore.

Dr. Althoff discussed long-term complications of HIV and its treatment in a virtual symposium during an annual scientific meeting on infectious diseases.

“Many urban HIV providers have an increased proportion of patients who are older long-term survivors of the epidemic. Many, but not all of the comorbidities (including cardiovascular, neurocognitive, renal, and malignancies) have been associated with age, long-term HIV infection, especially uncontrolled HIV infection, and low CD4 nadirs,” commented Harry Lampiris, MD, professor of clinical medicine at the University of California, San Francisco.

“An increasing number of patients are experiencing geriatric syndromes (especially problems with mobility, cognitive decline, food insecurity, polypharmacy, and social isolation) at younger ages than HIV-negative populations,” he added.

Dr. Lampiris, who moderated the session where Dr. Althoff presented her findings, commented on it in an interview, but was not involved in her research.
 

Pathways to comorbidity

The three primary pathways to comorbidities in people with HIV infections are as follows, according to Dr. Athloff:

• The virus itself, with its associated inflammation, immunosuppression, immune activation, and AIDS.
• HIV therapies, beginning with the notoriously toxic dideoxynucleoside analogues or “d-drugs,” and following with subsequent generations of newer, less toxic agents.
• Individual risk factors, including smoking, stress, diet, exercise, and environment.

Cardiovascular and renal complications

Persons with HIV have an approximately twofold higher risk for major adverse cardiovascular events (myocardial infarction, stroke) compared with persons without HIV. Conditions contributing to cardiovascular disease including hypertension, diabetes, and hyperlipidemia are also significantly higher among persons with HIV, Dr. Althoff said.

Hypertension among persons with HIV from the ages 60-69 years is especially high for Black men and to a lesser degree non-Black men, compared with either White or Black women, she noted.

Pathways to renal disease in persons with HIV include diabetes and hypertension, as well as therapies to treat them, hepatitis B and C coinfection, HIV-associated nephropathy, and immune complex kidney disease, as well as chronic kidney disease resulting from acute kidney injury related to therapy.

“Cardiovascular disease and kidney disease are excellent examples of why the life-course perspective is essential when caring for people with HIV. For those diagnosed with HIV at younger ages, there are points of intervention along the decades-long path, and the timing and implementation of the most effective intervention may preserve comorbidity-free years,” Dr. Althoff said.

Prevention and screening interventions to lower risk for future heart- and kidney-related comorbidities include smoking cessation and lifestyle optimization (diet, exercise, mental health), as well as lipid-lowering medications to lower risk for cardiovascular events.
 

Liver comorbidities

“Primary drivers of liver disease are social determinants of health and individual lifestyle risk factors that share the same pathways as HIV, resulting in this increased burden of liver disease in people with HIV,” she said.

Risk factors include alcoholic liver disease, nonalcoholic fatty liver disease, hepatitis B and C coinfection, drug use, autoimmune disease, and aging. These risk factors contribute to oxidative stress, mitochondrial injury, lipotoxicity, cytotoxicity, and other mechanisms that can lead to fibrosis, cirrhosis, hepatocellular carcinoma, and end-stage liver disease.

“I want to be sure to acknowledge the importance of liver disease as a comorbidity among people with HIV. Liver disease accounts for nearly 20% of mortality in persons with HIV,” she said.
 

Neurocognitive problems

HIV has been linked to neurocognitive decline since the beginning of the epidemic, Dr. Althoff noted. The term HIV-associated neurocognitive disorders encompasses the broad spectrum of cognitive effects of HIV, from asymptomatic illness to AIDS-related dementia. Estimates of cognitive impairment in people with HIV range from 14% to 64% across various study populations, but diagnosing and treating it in the community can be challenging.

“Routine monitoring of cognition is often just out of reach in the clinical setting, due to the time it takes to use validated tools. We need a deeper toolbox of quick and validated tools calibrated to people with HIV in order to accurately monitor cognition,” she said.

She noted that the average age of onset of Alzheimer’s disease in the general population is 80 years, and that relatively few people with HIV infection have reached that age.

“But before the population age distribution shifts to the older ages, we can do more to monitor cognition in people with HIV,” she added.

In addition to HIV, factors that can contribute to worse neurocognitive outcomes include major depressive disorder, occurring in and estimated 20%-40% of adults with HIV versus 8% of the U.S. population, generalized anxiety disorder (10%-25% vs. 3%), bipolar disorder (3%-9% vs. 3%), schizophrenia (4%-15% vs. 1%), and posttraumatic stress disorder (10%-30% vs. 8%).

Substance use and polypharmacy, common among adults with HIV, can also contribute to cognitive decline, she said.
 

Decreased mobility

The Multicenter AIDS Cohort Study (MACS) showed that decreased mobility, defined as a gait speed less than 1 m/sec, occurred earlier in life among HIV-positive men than in HIV-negative men.

In the general aging population, slow gait speed is a predictor for lower extremity limitations, hospitalization, and death, and in more recent MACS studies was associated with increased hemoglobin A_1C levels, as well as neurocognitive impairment.

“Hemoglobin A_1C is an intervenable target, and perhaps it will help to slow the decline in gait speed,” Dr. Althoff said.
 

Reduce ‘healthspan’ disparities

The goal for treating aging adults with HIV “is to reduce the disparity in healthspan between people with HIV compared to people without HIV by delaying or eliminating the onset of comorbidities among people with HIV,” she said.

The gerontological concept of extending “healthspan” – the duration of life without significant comorbidities – is to target common mechanisms of aging, thereby delaying the onset of more than one age-related disease at the same time.

“Crude translation of this concept to the population of aging with HIV includes reducing that gap in comorbidity-free survival in people with versus without HIV,” she said.

Modification of care models from geriatrics may help infectious disease specialists manage adults with HIV who have increasingly complex needs.

For example, the geriatric “5 M” model emphasizes focusing on issues of mind (mentation, dementia, delirium, depression), mobility (impaired gait and balance, as well as fall prevention), medications (reducing polypharmacy, optimal prescribing), multicomplexity (multiple morbidities and complex bio-psycho-social situations), and “matters most” (each patient’s individual meaningful health outcome goals and care preferences).

Changing exposures that may influence the pattern of comorbidities for patients with HIV in the future include earlier start on ART, shorter duration of uncontrolled viremia, compared with older populations, newer and less toxic ARTs, long-term viral suppression, and risk factor interventions, Dr. Althoff concluded.

Dr. Lampiris noted that “patients who have initiated therapy in the last 5-10 years are more likely to initiate antiretroviral therapy at higher CD4 counts, and less likely to experience long-term toxicities of antiretroviral therapy. However, African Americans, Hispanics and HIV-positive women continue to lag behind others with regard to timely initiation of treatment.

“In addition there are toxicities associated with the newer agents, particularly weight gain, which disproportionately affect African Americans and women and which may be made worse by poverty, food insecurity, and other health-related behaviors.”

Dr. Athloff’s work is supported by grants from the National Institutes for Health. She disclosed serving as a consultant to the NIH-funded All of US study and to MediQ, and as an adviser to TrioHealth. Dr. Lampiris reported having no disclosures.

The age of antiretroviral therapy (ART) for HIV is in its third decade, and many of the patients who live in areas of the world fortunate enough to have had early access to therapy have now lived for several decades with complications of HIV and viral suppressive therapy.

But while the life-expectancy of persons with HIV has approached that of noninfected persons over the last 20 years, the higher burden of comorbidities for aging patients with HIV has remained largely the same, according to an epidemiologist who specializes in HIV/AIDS research and aging.

“The pathways from HIV and its treatments to comorbidities are very long and winding, spanning a life course. Social determinants of health and individual risk factors also play an important role, and must be considered,” said Keri N. Althoff, PhD, MPH, of Johns Hopkins University, Baltimore.

Dr. Althoff discussed long-term complications of HIV and its treatment in a virtual symposium during an annual scientific meeting on infectious diseases.

“Many urban HIV providers have an increased proportion of patients who are older long-term survivors of the epidemic. Many, but not all of the comorbidities (including cardiovascular, neurocognitive, renal, and malignancies) have been associated with age, long-term HIV infection, especially uncontrolled HIV infection, and low CD4 nadirs,” commented Harry Lampiris, MD, professor of clinical medicine at the University of California, San Francisco.

“An increasing number of patients are experiencing geriatric syndromes (especially problems with mobility, cognitive decline, food insecurity, polypharmacy, and social isolation) at younger ages than HIV-negative populations,” he added.

Dr. Lampiris, who moderated the session where Dr. Althoff presented her findings, commented on it in an interview, but was not involved in her research.
 

Pathways to comorbidity

The three primary pathways to comorbidities in people with HIV infections are as follows, according to Dr. Athloff:

• The virus itself, with its associated inflammation, immunosuppression, immune activation, and AIDS.
• HIV therapies, beginning with the notoriously toxic dideoxynucleoside analogues or “d-drugs,” and following with subsequent generations of newer, less toxic agents.
• Individual risk factors, including smoking, stress, diet, exercise, and environment.

Cardiovascular and renal complications

Persons with HIV have an approximately twofold higher risk for major adverse cardiovascular events (myocardial infarction, stroke) compared with persons without HIV. Conditions contributing to cardiovascular disease including hypertension, diabetes, and hyperlipidemia are also significantly higher among persons with HIV, Dr. Althoff said.

Hypertension among persons with HIV from the ages 60-69 years is especially high for Black men and to a lesser degree non-Black men, compared with either White or Black women, she noted.

Pathways to renal disease in persons with HIV include diabetes and hypertension, as well as therapies to treat them, hepatitis B and C coinfection, HIV-associated nephropathy, and immune complex kidney disease, as well as chronic kidney disease resulting from acute kidney injury related to therapy.

“Cardiovascular disease and kidney disease are excellent examples of why the life-course perspective is essential when caring for people with HIV. For those diagnosed with HIV at younger ages, there are points of intervention along the decades-long path, and the timing and implementation of the most effective intervention may preserve comorbidity-free years,” Dr. Althoff said.

Prevention and screening interventions to lower risk for future heart- and kidney-related comorbidities include smoking cessation and lifestyle optimization (diet, exercise, mental health), as well as lipid-lowering medications to lower risk for cardiovascular events.
 

Liver comorbidities

“Primary drivers of liver disease are social determinants of health and individual lifestyle risk factors that share the same pathways as HIV, resulting in this increased burden of liver disease in people with HIV,” she said.

Risk factors include alcoholic liver disease, nonalcoholic fatty liver disease, hepatitis B and C coinfection, drug use, autoimmune disease, and aging. These risk factors contribute to oxidative stress, mitochondrial injury, lipotoxicity, cytotoxicity, and other mechanisms that can lead to fibrosis, cirrhosis, hepatocellular carcinoma, and end-stage liver disease.

“I want to be sure to acknowledge the importance of liver disease as a comorbidity among people with HIV. Liver disease accounts for nearly 20% of mortality in persons with HIV,” she said.
 

Neurocognitive problems

HIV has been linked to neurocognitive decline since the beginning of the epidemic, Dr. Althoff noted. The term HIV-associated neurocognitive disorders encompasses the broad spectrum of cognitive effects of HIV, from asymptomatic illness to AIDS-related dementia. Estimates of cognitive impairment in people with HIV range from 14% to 64% across various study populations, but diagnosing and treating it in the community can be challenging.

“Routine monitoring of cognition is often just out of reach in the clinical setting, due to the time it takes to use validated tools. We need a deeper toolbox of quick and validated tools calibrated to people with HIV in order to accurately monitor cognition,” she said.

She noted that the average age of onset of Alzheimer’s disease in the general population is 80 years, and that relatively few people with HIV infection have reached that age.

“But before the population age distribution shifts to the older ages, we can do more to monitor cognition in people with HIV,” she added.

In addition to HIV, factors that can contribute to worse neurocognitive outcomes include major depressive disorder, occurring in and estimated 20%-40% of adults with HIV versus 8% of the U.S. population, generalized anxiety disorder (10%-25% vs. 3%), bipolar disorder (3%-9% vs. 3%), schizophrenia (4%-15% vs. 1%), and posttraumatic stress disorder (10%-30% vs. 8%).

Substance use and polypharmacy, common among adults with HIV, can also contribute to cognitive decline, she said.
 

Decreased mobility

The Multicenter AIDS Cohort Study (MACS) showed that decreased mobility, defined as a gait speed less than 1 m/sec, occurred earlier in life among HIV-positive men than in HIV-negative men.

In the general aging population, slow gait speed is a predictor for lower extremity limitations, hospitalization, and death, and in more recent MACS studies was associated with increased hemoglobin A_1C levels, as well as neurocognitive impairment.

“Hemoglobin A_1C is an intervenable target, and perhaps it will help to slow the decline in gait speed,” Dr. Althoff said.
 

Reduce ‘healthspan’ disparities

The goal for treating aging adults with HIV “is to reduce the disparity in healthspan between people with HIV compared to people without HIV by delaying or eliminating the onset of comorbidities among people with HIV,” she said.

The gerontological concept of extending “healthspan” – the duration of life without significant comorbidities – is to target common mechanisms of aging, thereby delaying the onset of more than one age-related disease at the same time.

“Crude translation of this concept to the population of aging with HIV includes reducing that gap in comorbidity-free survival in people with versus without HIV,” she said.

Modification of care models from geriatrics may help infectious disease specialists manage adults with HIV who have increasingly complex needs.

For example, the geriatric “5 M” model emphasizes focusing on issues of mind (mentation, dementia, delirium, depression), mobility (impaired gait and balance, as well as fall prevention), medications (reducing polypharmacy, optimal prescribing), multicomplexity (multiple morbidities and complex bio-psycho-social situations), and “matters most” (each patient’s individual meaningful health outcome goals and care preferences).

Changing exposures that may influence the pattern of comorbidities for patients with HIV in the future include earlier start on ART, shorter duration of uncontrolled viremia, compared with older populations, newer and less toxic ARTs, long-term viral suppression, and risk factor interventions, Dr. Althoff concluded.

Dr. Lampiris noted that “patients who have initiated therapy in the last 5-10 years are more likely to initiate antiretroviral therapy at higher CD4 counts, and less likely to experience long-term toxicities of antiretroviral therapy. However, African Americans, Hispanics and HIV-positive women continue to lag behind others with regard to timely initiation of treatment.

“In addition there are toxicities associated with the newer agents, particularly weight gain, which disproportionately affect African Americans and women and which may be made worse by poverty, food insecurity, and other health-related behaviors.”

Dr. Athloff’s work is supported by grants from the National Institutes for Health. She disclosed serving as a consultant to the NIH-funded All of US study and to MediQ, and as an adviser to TrioHealth. Dr. Lampiris reported having no disclosures.

Preemptive monitoring and treatment of cytomegalovirus infections in CMV-seronegative liver transplant recipients who receive organs from CMV-positive donors appears to be better at preventing infections than a viral prophylaxis strategy, according to infectious disease and organ transplant specialists.

In a study published in JAMA that may have gotten scant notice because of its publication during the early days of the COVID-19 pandemic, investigators at the University of Pittsburgh and other transplant centers reported results of a randomized clinical trial comparing the two CMV management strategies, and found that the incidence of CMV disease was significantly lower for patients who were started on valganciclovir when asymptomatic CMV viremia was detected, compared with patients on antiviral prophylaxis with valganciclovir.

The study “is a significant game changer for the field of transplantation,” commented Michael G. Ison, MD, professor of infectious diseases and organ transplantation at Northwestern University, Chicago.

Dr. Ison discussed the study and its implications during a session on potentially practice-changing clinical trials presented virtually during IDWeek 2020, an annual scientific meeting on infectious diseases.

In the trial, Nina Singh, MD, and colleagues randomly assigned 100 CMV-seronegative liver transplant recipients to receive preemptive therapy, in which patients underwent weekly testing for 100 days with a highly sensitive real-time plasma polymerase chain reaction assay for CMV. If viremia at any level was detected, the patients received oral valganciclovir 900 mg twice daily until two consecutive tests performed 1 week apart came back negative.

The remaining 105 patients were randomly assigned to 100 days of oral prophylaxis with 900 mg valganciclovir twice daily, started within 10 days of transplant.
 

CMV disease incidence lower

The incidence of CMV disease within 12 months of transplants, the primary outcome, was 9% in the preemptive therapy group, compared with 19% in the prophylaxis group (P = .04)

The difference between the groups was largely accounted for by a reduction in disease onset beyond 100 days in the preemptive therapy group (6% vs. 17%, respectively, P = .01)

There were no significant differences in secondary endpoints of rejection, opportunistic infections, graft loss because of retransplantation, neutropenia, or receipt of one or more doses of granulocyte colony–stimulating factor for the management of neutropenia.

At 1-year follow-up, the incidence of all-cause mortality was 15% in the preemptive therapy group, and 19% in the prophylaxis group; the difference was not statistically significant.

“While most transplant centers utilize universal prophylaxis, I think that this study really suggests that preemptive monitoring, if it can be safely accomplished at your center, may be of the greatest benefit to your patients,” Dr. Ison said.

He noted that Singh et al. also looked in an exploratory analysis at CMV-specific immunity and observed that patients assigned to preemptive therapy “clearly had better CMV-specific immunity, whether CD4 or CD8 cells, and had higher lymphocyte numbers than those patients that had received universal prophylaxis.”

In a comment, Sarah Doernberg, MD, from the division of infectious diseases at the University of California, San Francisco, agreed that “exploratory analysis of CMV-specific immune responses suggested increased CMV-specific immunity in those in the preemptive group, a finding that warrants further study. The feasibility of adopting reliable preemptive monitoring must be considered as individual centers ponder adopting this approach.”

Dr. Doernberg moderated the session where Dr. Ison discussed the data, but was not involved in the research.

The study by Singh et al. was supported by the National Institutes of Health. Dr. Singh reported research grants from NIH. Dr. Ison disclosed research support and paid consultation for several companies. Dr. Doernberg disclosed consulting for Basilea and Genentech.

Preemptive monitoring and treatment of cytomegalovirus infections in CMV-seronegative liver transplant recipients who receive organs from CMV-positive donors appears to be better at preventing infections than a viral prophylaxis strategy, according to infectious disease and organ transplant specialists.

In a study published in JAMA that may have gotten scant notice because of its publication during the early days of the COVID-19 pandemic, investigators at the University of Pittsburgh and other transplant centers reported results of a randomized clinical trial comparing the two CMV management strategies, and found that the incidence of CMV disease was significantly lower for patients who were started on valganciclovir when asymptomatic CMV viremia was detected, compared with patients on antiviral prophylaxis with valganciclovir.

The study “is a significant game changer for the field of transplantation,” commented Michael G. Ison, MD, professor of infectious diseases and organ transplantation at Northwestern University, Chicago.

Dr. Ison discussed the study and its implications during a session on potentially practice-changing clinical trials presented virtually during IDWeek 2020, an annual scientific meeting on infectious diseases.

In the trial, Nina Singh, MD, and colleagues randomly assigned 100 CMV-seronegative liver transplant recipients to receive preemptive therapy, in which patients underwent weekly testing for 100 days with a highly sensitive real-time plasma polymerase chain reaction assay for CMV. If viremia at any level was detected, the patients received oral valganciclovir 900 mg twice daily until two consecutive tests performed 1 week apart came back negative.

The remaining 105 patients were randomly assigned to 100 days of oral prophylaxis with 900 mg valganciclovir twice daily, started within 10 days of transplant.
 

CMV disease incidence lower

The incidence of CMV disease within 12 months of transplants, the primary outcome, was 9% in the preemptive therapy group, compared with 19% in the prophylaxis group (P = .04)

The difference between the groups was largely accounted for by a reduction in disease onset beyond 100 days in the preemptive therapy group (6% vs. 17%, respectively, P = .01)

There were no significant differences in secondary endpoints of rejection, opportunistic infections, graft loss because of retransplantation, neutropenia, or receipt of one or more doses of granulocyte colony–stimulating factor for the management of neutropenia.

At 1-year follow-up, the incidence of all-cause mortality was 15% in the preemptive therapy group, and 19% in the prophylaxis group; the difference was not statistically significant.

“While most transplant centers utilize universal prophylaxis, I think that this study really suggests that preemptive monitoring, if it can be safely accomplished at your center, may be of the greatest benefit to your patients,” Dr. Ison said.

He noted that Singh et al. also looked in an exploratory analysis at CMV-specific immunity and observed that patients assigned to preemptive therapy “clearly had better CMV-specific immunity, whether CD4 or CD8 cells, and had higher lymphocyte numbers than those patients that had received universal prophylaxis.”

In a comment, Sarah Doernberg, MD, from the division of infectious diseases at the University of California, San Francisco, agreed that “exploratory analysis of CMV-specific immune responses suggested increased CMV-specific immunity in those in the preemptive group, a finding that warrants further study. The feasibility of adopting reliable preemptive monitoring must be considered as individual centers ponder adopting this approach.”

Dr. Doernberg moderated the session where Dr. Ison discussed the data, but was not involved in the research.

The study by Singh et al. was supported by the National Institutes of Health. Dr. Singh reported research grants from NIH. Dr. Ison disclosed research support and paid consultation for several companies. Dr. Doernberg disclosed consulting for Basilea and Genentech.

Preemptive monitoring and treatment of cytomegalovirus infections in CMV-seronegative liver transplant recipients who receive organs from CMV-positive donors appears to be better at preventing infections than a viral prophylaxis strategy, according to infectious disease and organ transplant specialists.

In a study published in JAMA that may have gotten scant notice because of its publication during the early days of the COVID-19 pandemic, investigators at the University of Pittsburgh and other transplant centers reported results of a randomized clinical trial comparing the two CMV management strategies, and found that the incidence of CMV disease was significantly lower for patients who were started on valganciclovir when asymptomatic CMV viremia was detected, compared with patients on antiviral prophylaxis with valganciclovir.

The study “is a significant game changer for the field of transplantation,” commented Michael G. Ison, MD, professor of infectious diseases and organ transplantation at Northwestern University, Chicago.

Dr. Ison discussed the study and its implications during a session on potentially practice-changing clinical trials presented virtually during IDWeek 2020, an annual scientific meeting on infectious diseases.

In the trial, Nina Singh, MD, and colleagues randomly assigned 100 CMV-seronegative liver transplant recipients to receive preemptive therapy, in which patients underwent weekly testing for 100 days with a highly sensitive real-time plasma polymerase chain reaction assay for CMV. If viremia at any level was detected, the patients received oral valganciclovir 900 mg twice daily until two consecutive tests performed 1 week apart came back negative.

The remaining 105 patients were randomly assigned to 100 days of oral prophylaxis with 900 mg valganciclovir twice daily, started within 10 days of transplant.
 

CMV disease incidence lower

The incidence of CMV disease within 12 months of transplants, the primary outcome, was 9% in the preemptive therapy group, compared with 19% in the prophylaxis group (P = .04)

The difference between the groups was largely accounted for by a reduction in disease onset beyond 100 days in the preemptive therapy group (6% vs. 17%, respectively, P = .01)

There were no significant differences in secondary endpoints of rejection, opportunistic infections, graft loss because of retransplantation, neutropenia, or receipt of one or more doses of granulocyte colony–stimulating factor for the management of neutropenia.

At 1-year follow-up, the incidence of all-cause mortality was 15% in the preemptive therapy group, and 19% in the prophylaxis group; the difference was not statistically significant.

“While most transplant centers utilize universal prophylaxis, I think that this study really suggests that preemptive monitoring, if it can be safely accomplished at your center, may be of the greatest benefit to your patients,” Dr. Ison said.

He noted that Singh et al. also looked in an exploratory analysis at CMV-specific immunity and observed that patients assigned to preemptive therapy “clearly had better CMV-specific immunity, whether CD4 or CD8 cells, and had higher lymphocyte numbers than those patients that had received universal prophylaxis.”

In a comment, Sarah Doernberg, MD, from the division of infectious diseases at the University of California, San Francisco, agreed that “exploratory analysis of CMV-specific immune responses suggested increased CMV-specific immunity in those in the preemptive group, a finding that warrants further study. The feasibility of adopting reliable preemptive monitoring must be considered as individual centers ponder adopting this approach.”

Dr. Doernberg moderated the session where Dr. Ison discussed the data, but was not involved in the research.

The study by Singh et al. was supported by the National Institutes of Health. Dr. Singh reported research grants from NIH. Dr. Ison disclosed research support and paid consultation for several companies. Dr. Doernberg disclosed consulting for Basilea and Genentech.

A new formulation of an existing antibacterial agent and a potential therapeutic approach to a challenging clinical problem were the focus of a session on potentially practice-changing clinical trials in antimicrobial therapy presented during IDWeek 2020, an annual scientific meeting on infectious diseases.

“I know it has been a big year for viral disease of course, with COVID, but there has been some really good work that has gone on in the bacterial space, and of course as those of you who are on service know, you may have your fair share of COVID patients, but these are infections that we still deal with on a daily basis,” said Michael Satlin, MD, an infectious disease specialist at Weill Cornell Medicine in New York.

He combed through studies published during the previous 12 months in leading medical journals, including the New England Journal of Medicine, JAMA network publications, Lancet Infectious Diseases, Lancet Respiratory Medicine, Clinical Infectious Diseases, and Clinical Microbiology and Infection, looking for randomized trials of interventions to treat bacterial infections, and selecting those most likely to change practice of U.S. infectious diseases practitioners.

He excluded meta-analyses, post hoc analyses, evaluations of diagnostic tests, stewardship, or any studies presented previously at IDWeek.

Two of the trials he highlighted are described here.
 

Fosfomycin for injection

In the United States, fosfomycin, the only antibiotic in its class, is currently available only in an oral sachet formulation (Monurol), “and typically we’ve only given this for patients with cystitis because we know that we don’t achieve significant levels [of drug] in the kidney or in the bloodstream for other types of infections,” Dr. Satlin said.

In Europe, however fosfomycin for injection (ZTI-01) has been available for several years.

“There’s been a lot of interest in fosfomycin because it has a different mechanism of action from other agents. It’s an epoxide antibiotic that inhibits early peptidoglycan synthesis by binding to MurA,” he explained.

The phase 2/3 randomized ZEUS trial compared ZTI-01 with piperacillin/tazobactam (pip/taz) for treatment of complicated urinary tract infection (UTI) including acute pyelonephritis.

A total of 465 hospitalized adults with suspected or microbiologically confirmed complicated UTI or acute pyelonephritis were randomized to 6 g of ZTI-01 every 8 hours or 4.5 g of intravenous pip/taz every 8 hours for a fixed 7-day course with no oral switch; patients with concomitant bacteremia (about 9% of the study population) could receive the assigned therapy for up to 14 days.

The primary endpoint of noninferiority of ZTI-01 was met and clinical cure rates were high and similar between the treatments, at approximately 91% each. Treatment-emergent adverse events, including hypokalemia and elevated serum aminotransferases, were mostly mild and transient.

The hypokalemia seen in the trial may be attributable to the high salt load of fosfomycin relative to pip/taz, Dr. Satlin said.

“How might this change your practice? Well, if IV fosfomycin is ever FDA [Food and Drug Administration] approved – and my understanding is that the delays have been more related to manufacturing than scientific quality of data – it could potentially be an alternative to beta-lactams and fluoroquinolones” and has activity against most extend spectrum beta-lactamase (ESBL)–producing Enterobacteriaceae, he said.

Fosfomycin susceptibility testing is challenging, however, with no Clinical & Laboratory Standards Institute (CLSI) or FDA breakpoints for Enterobacterales other than Escherichia coli, and there are questions about the step-down therapy.

“Do you just give a 3-gram sachet chaser when they walk out the door? Do you switch to another agent? I think that needs to be worked out,” he said.
 

Inhaled amikacin

“We know that some IV antibiotics, particularly for resistant organisms, may not achieve sufficient concentrations in the lung to treat pneumonia. We know that inhaled antibiotics can give a lot of concentration of that drug right at the at the site of infection, but we don’t really have [randomized controlled trial] data to see whether it really helps,” Dr. Satlin said.

The INHALE trial was a double-blind, placebo-controlled superiority trial to see whether adding inhaled amikacin to IV standard-of-care antibiotics could improve outcomes for mechanically ventilated patients with gram-negative pneumonia.

The investigators enrolled 725 adults who were receiving mechanical ventilation for pneumonia, 45% of who had ventilator-associated pneumonia (VAP). Of the total cohort, 508 patients analyzed for efficacy had gram-negative pathogens, including 32% with Pseudomonas aeurginosa, 29% with Acinetobacter baumannii, 30% with E. coli, and the remainder with Klebsiella pneumoniae.

Patients were randomized to standard-of-care intravenous antibiotics plus either inhaled amikacin 400 mg twice daily for 10 days or inhaled saline placebo.

“Of note, the median standard-of-care antibiotics in this study was 18 days, which is certainly longer than what our guidelines recommend.”

There was no significant difference between study arms in the primary endpoint of survival at days 28-32 for all patients who had received at least one dose of study drug, were infected with a gram-negative pathogen, and an Acute Physiology and Chronic Health Evaluation (APACHE) II score of at 10 or higher at diagnosis. The respective survival rates for the inhaled amikacin and placebo groups were 75% and 77%. The incidence of treatment-emergent adverse events or serious treatment-emergent adverse events were similar between the two treatment arms.

“No matter how you sliced and diced it – days of mechanical ventilation, duration of ICU stay – essentially they looked the same. Even for [extensively drug resistant] pathogens where you might expect that you’d see the benefit of inhaled amikacin, they didn’t really see a mortality benefit in this study,” Dr. Satlin said.

The study is practice changing, he said “because I think inhaled aminoglycosides should not be routinely added to the standard of care IV antibiotics for pneumonia in ventilated patients,” he said.

It’s still unclear whether inhaled aminoglycosides might play a role in the treatment of select patients infected with organisms resistant to all beta-lactams and fluoroquinolones, he added.
 

Tempting strategy

“Adding inhaled antibiotics is a tempting strategy for treatment of ventilated pneumonia, which often has poor outcomes,” commented Thomas Holland, MD, a hospitalist and infectious disease specialist at Duke University Hospital in Durham, N.C. “This is valuable and practical information as clinicians choose antibiotics regimens for this difficult-to-treat syndrome,” he said in an interview.

Dr. Holland comoderated the session in which Dr. Satlin presented the study findings and opinions.

No funding source for the presentation was reported. Dr. Satlin reported consulting for Shionogi and Achaogen and research grants from Allergan, Merck, and BioFire Diagnostics. Dr. Holland disclosed consulting fees and other material support from Basilea Pharmaceutica, Genetech, Karius and Theravance.

A new formulation of an existing antibacterial agent and a potential therapeutic approach to a challenging clinical problem were the focus of a session on potentially practice-changing clinical trials in antimicrobial therapy presented during IDWeek 2020, an annual scientific meeting on infectious diseases.

“I know it has been a big year for viral disease of course, with COVID, but there has been some really good work that has gone on in the bacterial space, and of course as those of you who are on service know, you may have your fair share of COVID patients, but these are infections that we still deal with on a daily basis,” said Michael Satlin, MD, an infectious disease specialist at Weill Cornell Medicine in New York.

He combed through studies published during the previous 12 months in leading medical journals, including the New England Journal of Medicine, JAMA network publications, Lancet Infectious Diseases, Lancet Respiratory Medicine, Clinical Infectious Diseases, and Clinical Microbiology and Infection, looking for randomized trials of interventions to treat bacterial infections, and selecting those most likely to change practice of U.S. infectious diseases practitioners.

He excluded meta-analyses, post hoc analyses, evaluations of diagnostic tests, stewardship, or any studies presented previously at IDWeek.

Two of the trials he highlighted are described here.
 

Fosfomycin for injection

In the United States, fosfomycin, the only antibiotic in its class, is currently available only in an oral sachet formulation (Monurol), “and typically we’ve only given this for patients with cystitis because we know that we don’t achieve significant levels [of drug] in the kidney or in the bloodstream for other types of infections,” Dr. Satlin said.

In Europe, however fosfomycin for injection (ZTI-01) has been available for several years.

“There’s been a lot of interest in fosfomycin because it has a different mechanism of action from other agents. It’s an epoxide antibiotic that inhibits early peptidoglycan synthesis by binding to MurA,” he explained.

The phase 2/3 randomized ZEUS trial compared ZTI-01 with piperacillin/tazobactam (pip/taz) for treatment of complicated urinary tract infection (UTI) including acute pyelonephritis.

A total of 465 hospitalized adults with suspected or microbiologically confirmed complicated UTI or acute pyelonephritis were randomized to 6 g of ZTI-01 every 8 hours or 4.5 g of intravenous pip/taz every 8 hours for a fixed 7-day course with no oral switch; patients with concomitant bacteremia (about 9% of the study population) could receive the assigned therapy for up to 14 days.

The primary endpoint of noninferiority of ZTI-01 was met and clinical cure rates were high and similar between the treatments, at approximately 91% each. Treatment-emergent adverse events, including hypokalemia and elevated serum aminotransferases, were mostly mild and transient.

The hypokalemia seen in the trial may be attributable to the high salt load of fosfomycin relative to pip/taz, Dr. Satlin said.

“How might this change your practice? Well, if IV fosfomycin is ever FDA [Food and Drug Administration] approved – and my understanding is that the delays have been more related to manufacturing than scientific quality of data – it could potentially be an alternative to beta-lactams and fluoroquinolones” and has activity against most extend spectrum beta-lactamase (ESBL)–producing Enterobacteriaceae, he said.

Fosfomycin susceptibility testing is challenging, however, with no Clinical & Laboratory Standards Institute (CLSI) or FDA breakpoints for Enterobacterales other than Escherichia coli, and there are questions about the step-down therapy.

“Do you just give a 3-gram sachet chaser when they walk out the door? Do you switch to another agent? I think that needs to be worked out,” he said.
 

Inhaled amikacin

“We know that some IV antibiotics, particularly for resistant organisms, may not achieve sufficient concentrations in the lung to treat pneumonia. We know that inhaled antibiotics can give a lot of concentration of that drug right at the at the site of infection, but we don’t really have [randomized controlled trial] data to see whether it really helps,” Dr. Satlin said.

The INHALE trial was a double-blind, placebo-controlled superiority trial to see whether adding inhaled amikacin to IV standard-of-care antibiotics could improve outcomes for mechanically ventilated patients with gram-negative pneumonia.

The investigators enrolled 725 adults who were receiving mechanical ventilation for pneumonia, 45% of who had ventilator-associated pneumonia (VAP). Of the total cohort, 508 patients analyzed for efficacy had gram-negative pathogens, including 32% with Pseudomonas aeurginosa, 29% with Acinetobacter baumannii, 30% with E. coli, and the remainder with Klebsiella pneumoniae.

Patients were randomized to standard-of-care intravenous antibiotics plus either inhaled amikacin 400 mg twice daily for 10 days or inhaled saline placebo.

“Of note, the median standard-of-care antibiotics in this study was 18 days, which is certainly longer than what our guidelines recommend.”

There was no significant difference between study arms in the primary endpoint of survival at days 28-32 for all patients who had received at least one dose of study drug, were infected with a gram-negative pathogen, and an Acute Physiology and Chronic Health Evaluation (APACHE) II score of at 10 or higher at diagnosis. The respective survival rates for the inhaled amikacin and placebo groups were 75% and 77%. The incidence of treatment-emergent adverse events or serious treatment-emergent adverse events were similar between the two treatment arms.

“No matter how you sliced and diced it – days of mechanical ventilation, duration of ICU stay – essentially they looked the same. Even for [extensively drug resistant] pathogens where you might expect that you’d see the benefit of inhaled amikacin, they didn’t really see a mortality benefit in this study,” Dr. Satlin said.

The study is practice changing, he said “because I think inhaled aminoglycosides should not be routinely added to the standard of care IV antibiotics for pneumonia in ventilated patients,” he said.

It’s still unclear whether inhaled aminoglycosides might play a role in the treatment of select patients infected with organisms resistant to all beta-lactams and fluoroquinolones, he added.
 

Tempting strategy

“Adding inhaled antibiotics is a tempting strategy for treatment of ventilated pneumonia, which often has poor outcomes,” commented Thomas Holland, MD, a hospitalist and infectious disease specialist at Duke University Hospital in Durham, N.C. “This is valuable and practical information as clinicians choose antibiotics regimens for this difficult-to-treat syndrome,” he said in an interview.

Dr. Holland comoderated the session in which Dr. Satlin presented the study findings and opinions.

No funding source for the presentation was reported. Dr. Satlin reported consulting for Shionogi and Achaogen and research grants from Allergan, Merck, and BioFire Diagnostics. Dr. Holland disclosed consulting fees and other material support from Basilea Pharmaceutica, Genetech, Karius and Theravance.

A new formulation of an existing antibacterial agent and a potential therapeutic approach to a challenging clinical problem were the focus of a session on potentially practice-changing clinical trials in antimicrobial therapy presented during IDWeek 2020, an annual scientific meeting on infectious diseases.

“I know it has been a big year for viral disease of course, with COVID, but there has been some really good work that has gone on in the bacterial space, and of course as those of you who are on service know, you may have your fair share of COVID patients, but these are infections that we still deal with on a daily basis,” said Michael Satlin, MD, an infectious disease specialist at Weill Cornell Medicine in New York.

He combed through studies published during the previous 12 months in leading medical journals, including the New England Journal of Medicine, JAMA network publications, Lancet Infectious Diseases, Lancet Respiratory Medicine, Clinical Infectious Diseases, and Clinical Microbiology and Infection, looking for randomized trials of interventions to treat bacterial infections, and selecting those most likely to change practice of U.S. infectious diseases practitioners.

He excluded meta-analyses, post hoc analyses, evaluations of diagnostic tests, stewardship, or any studies presented previously at IDWeek.

Two of the trials he highlighted are described here.
 

Fosfomycin for injection

In the United States, fosfomycin, the only antibiotic in its class, is currently available only in an oral sachet formulation (Monurol), “and typically we’ve only given this for patients with cystitis because we know that we don’t achieve significant levels [of drug] in the kidney or in the bloodstream for other types of infections,” Dr. Satlin said.

In Europe, however fosfomycin for injection (ZTI-01) has been available for several years.

“There’s been a lot of interest in fosfomycin because it has a different mechanism of action from other agents. It’s an epoxide antibiotic that inhibits early peptidoglycan synthesis by binding to MurA,” he explained.

The phase 2/3 randomized ZEUS trial compared ZTI-01 with piperacillin/tazobactam (pip/taz) for treatment of complicated urinary tract infection (UTI) including acute pyelonephritis.

A total of 465 hospitalized adults with suspected or microbiologically confirmed complicated UTI or acute pyelonephritis were randomized to 6 g of ZTI-01 every 8 hours or 4.5 g of intravenous pip/taz every 8 hours for a fixed 7-day course with no oral switch; patients with concomitant bacteremia (about 9% of the study population) could receive the assigned therapy for up to 14 days.

The primary endpoint of noninferiority of ZTI-01 was met and clinical cure rates were high and similar between the treatments, at approximately 91% each. Treatment-emergent adverse events, including hypokalemia and elevated serum aminotransferases, were mostly mild and transient.

The hypokalemia seen in the trial may be attributable to the high salt load of fosfomycin relative to pip/taz, Dr. Satlin said.

“How might this change your practice? Well, if IV fosfomycin is ever FDA [Food and Drug Administration] approved – and my understanding is that the delays have been more related to manufacturing than scientific quality of data – it could potentially be an alternative to beta-lactams and fluoroquinolones” and has activity against most extend spectrum beta-lactamase (ESBL)–producing Enterobacteriaceae, he said.

Fosfomycin susceptibility testing is challenging, however, with no Clinical & Laboratory Standards Institute (CLSI) or FDA breakpoints for Enterobacterales other than Escherichia coli, and there are questions about the step-down therapy.

“Do you just give a 3-gram sachet chaser when they walk out the door? Do you switch to another agent? I think that needs to be worked out,” he said.
 

Inhaled amikacin

“We know that some IV antibiotics, particularly for resistant organisms, may not achieve sufficient concentrations in the lung to treat pneumonia. We know that inhaled antibiotics can give a lot of concentration of that drug right at the at the site of infection, but we don’t really have [randomized controlled trial] data to see whether it really helps,” Dr. Satlin said.

The INHALE trial was a double-blind, placebo-controlled superiority trial to see whether adding inhaled amikacin to IV standard-of-care antibiotics could improve outcomes for mechanically ventilated patients with gram-negative pneumonia.

The investigators enrolled 725 adults who were receiving mechanical ventilation for pneumonia, 45% of who had ventilator-associated pneumonia (VAP). Of the total cohort, 508 patients analyzed for efficacy had gram-negative pathogens, including 32% with Pseudomonas aeurginosa, 29% with Acinetobacter baumannii, 30% with E. coli, and the remainder with Klebsiella pneumoniae.

Patients were randomized to standard-of-care intravenous antibiotics plus either inhaled amikacin 400 mg twice daily for 10 days or inhaled saline placebo.

“Of note, the median standard-of-care antibiotics in this study was 18 days, which is certainly longer than what our guidelines recommend.”

There was no significant difference between study arms in the primary endpoint of survival at days 28-32 for all patients who had received at least one dose of study drug, were infected with a gram-negative pathogen, and an Acute Physiology and Chronic Health Evaluation (APACHE) II score of at 10 or higher at diagnosis. The respective survival rates for the inhaled amikacin and placebo groups were 75% and 77%. The incidence of treatment-emergent adverse events or serious treatment-emergent adverse events were similar between the two treatment arms.

“No matter how you sliced and diced it – days of mechanical ventilation, duration of ICU stay – essentially they looked the same. Even for [extensively drug resistant] pathogens where you might expect that you’d see the benefit of inhaled amikacin, they didn’t really see a mortality benefit in this study,” Dr. Satlin said.

The study is practice changing, he said “because I think inhaled aminoglycosides should not be routinely added to the standard of care IV antibiotics for pneumonia in ventilated patients,” he said.

It’s still unclear whether inhaled aminoglycosides might play a role in the treatment of select patients infected with organisms resistant to all beta-lactams and fluoroquinolones, he added.
 

Tempting strategy

“Adding inhaled antibiotics is a tempting strategy for treatment of ventilated pneumonia, which often has poor outcomes,” commented Thomas Holland, MD, a hospitalist and infectious disease specialist at Duke University Hospital in Durham, N.C. “This is valuable and practical information as clinicians choose antibiotics regimens for this difficult-to-treat syndrome,” he said in an interview.

Dr. Holland comoderated the session in which Dr. Satlin presented the study findings and opinions.

No funding source for the presentation was reported. Dr. Satlin reported consulting for Shionogi and Achaogen and research grants from Allergan, Merck, and BioFire Diagnostics. Dr. Holland disclosed consulting fees and other material support from Basilea Pharmaceutica, Genetech, Karius and Theravance.

Fewer than one-third of women hospitalized with influenza receive the recommended flu vaccine, according to a study using data over nine flu seasons.

Researchers analyzed data from 9,652 women ages 15-44 who were hospitalized with laboratory-confirmed influenza from October through April during the 2010-2019 influenza seasons. Data were pulled from the U.S. Influenza Hospitalization Surveillance Network (FluSurv-NET).

Of those women, 2,697 (28%) were pregnant. Median age was 28 and median gestational age was 32 weeks. Those studied included 36% who were non-Hispanic White; 29% non-Hispanic Black; and 20% Hispanic women.

Some 89% of the women, pregnant and nonpregnant, received antivirals while in the hospital but only 31% reported they had received the flu vaccine in the current season, despite guideline recommendations citing clear evidence that vaccination is safe for mother and baby.

Rachel Holstein, MPH, an epidemiology and information science fellow at the Centers for Disease Control and Prevention, who presented her team’s work as part of IDWeek 2020, explained that the mother’s vaccination can help protect the baby from flu infection for several months after birth, before the baby can be vaccinated.

She noted that pregnant women are at high risk for influenza-associated hospitalization.

“Changes in the immune system, heart, and lungs during pregnancy make pregnant women, and women up to 2 weeks post partum, more prone to severe illness from flu, including illness resulting in hospitalization,” she said in an interview

“Vaccination has been shown to reduce the risk of flu-associated acute respiratory infection in pregnant women by up to one-half,” she said. “A 2018 study showed that getting a flu shot reduced a pregnant woman’s risk of being hospitalized with flu by an average of 40%.»

FluSurv-NET data show hospitalizations were more common in the third trimester of pregnancy compared with the first and second, Holstein said. The most common underlying conditions among these women were asthma (23%) and obesity (10%), and 12% were current tobacco smokers. Overall, 5% of pregnant women with flu required ICU admission, 2% needed mechanical ventilation, and 6% developed pneumonia.
 

Vaccine uptake lowest in first two trimesters

Holstein said vaccine coverage was lowest among women in their first or second trimesters for all 9 seasons, and overall vaccination coverage increased significantly over time.

Uptake also differed by age. The data showed coverage was lower among women aged 15-34 years, compared with women 35 years and older (34% vs. 50%).

“It was as low as 15% among pregnant women aged 15-34 years in the 2011-12 season,” she added.

Jeanne Sheffield, MD, director of the division of maternal-fetal medicine at Johns Hopkins Medicine, Baltimore, said in an interview the low uptake of vaccine shown in this study is both familiar and frustrating.

She said education from health care providers has improved, but women are nonetheless frequently fearful. She pointed out the widespread phenomenon of vaccine hesitancy in the general population.

Coverage was 45.3% among adults in the 2018-2019 flu season, 8.2 percentage points higher than coverage during the 2017-18 season (37.1%) according to CDC estimates.

Added to that, she said, is further hesitancy when women believe vaccination could harm the unborn baby, despite “very good data that flu vaccine is safe in pregnancy, acceptable in pregnancy in all trimesters, and is optimal standard of care.”

Holstein added, “We know from past research that a range of factors – including negative attitudes and beliefs about vaccines, less knowledge about and access to vaccines, and a lack of trust in healthcare providers and vaccines – can contribute to lower vaccination rates.”

Healthcare providers play a key role in increasing flu vaccinations among pregnant women, she said.

“A provider recommendation, combined with an offer to administer a flu vaccine at the time of visit, remains one of the best ways to accomplish this,” Holstein said.

Holstein and Sheffield have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Fewer than one-third of women hospitalized with influenza receive the recommended flu vaccine, according to a study using data over nine flu seasons.

Researchers analyzed data from 9,652 women ages 15-44 who were hospitalized with laboratory-confirmed influenza from October through April during the 2010-2019 influenza seasons. Data were pulled from the U.S. Influenza Hospitalization Surveillance Network (FluSurv-NET).

Of those women, 2,697 (28%) were pregnant. Median age was 28 and median gestational age was 32 weeks. Those studied included 36% who were non-Hispanic White; 29% non-Hispanic Black; and 20% Hispanic women.

Some 89% of the women, pregnant and nonpregnant, received antivirals while in the hospital but only 31% reported they had received the flu vaccine in the current season, despite guideline recommendations citing clear evidence that vaccination is safe for mother and baby.

Rachel Holstein, MPH, an epidemiology and information science fellow at the Centers for Disease Control and Prevention, who presented her team’s work as part of IDWeek 2020, explained that the mother’s vaccination can help protect the baby from flu infection for several months after birth, before the baby can be vaccinated.

She noted that pregnant women are at high risk for influenza-associated hospitalization.

“Changes in the immune system, heart, and lungs during pregnancy make pregnant women, and women up to 2 weeks post partum, more prone to severe illness from flu, including illness resulting in hospitalization,” she said in an interview

“Vaccination has been shown to reduce the risk of flu-associated acute respiratory infection in pregnant women by up to one-half,” she said. “A 2018 study showed that getting a flu shot reduced a pregnant woman’s risk of being hospitalized with flu by an average of 40%.»

FluSurv-NET data show hospitalizations were more common in the third trimester of pregnancy compared with the first and second, Holstein said. The most common underlying conditions among these women were asthma (23%) and obesity (10%), and 12% were current tobacco smokers. Overall, 5% of pregnant women with flu required ICU admission, 2% needed mechanical ventilation, and 6% developed pneumonia.
 

Vaccine uptake lowest in first two trimesters

Holstein said vaccine coverage was lowest among women in their first or second trimesters for all 9 seasons, and overall vaccination coverage increased significantly over time.

Uptake also differed by age. The data showed coverage was lower among women aged 15-34 years, compared with women 35 years and older (34% vs. 50%).

“It was as low as 15% among pregnant women aged 15-34 years in the 2011-12 season,” she added.

Jeanne Sheffield, MD, director of the division of maternal-fetal medicine at Johns Hopkins Medicine, Baltimore, said in an interview the low uptake of vaccine shown in this study is both familiar and frustrating.

She said education from health care providers has improved, but women are nonetheless frequently fearful. She pointed out the widespread phenomenon of vaccine hesitancy in the general population.

Coverage was 45.3% among adults in the 2018-2019 flu season, 8.2 percentage points higher than coverage during the 2017-18 season (37.1%) according to CDC estimates.

Added to that, she said, is further hesitancy when women believe vaccination could harm the unborn baby, despite “very good data that flu vaccine is safe in pregnancy, acceptable in pregnancy in all trimesters, and is optimal standard of care.”

Holstein added, “We know from past research that a range of factors – including negative attitudes and beliefs about vaccines, less knowledge about and access to vaccines, and a lack of trust in healthcare providers and vaccines – can contribute to lower vaccination rates.”

Healthcare providers play a key role in increasing flu vaccinations among pregnant women, she said.

“A provider recommendation, combined with an offer to administer a flu vaccine at the time of visit, remains one of the best ways to accomplish this,” Holstein said.

Holstein and Sheffield have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Fewer than one-third of women hospitalized with influenza receive the recommended flu vaccine, according to a study using data over nine flu seasons.

Researchers analyzed data from 9,652 women ages 15-44 who were hospitalized with laboratory-confirmed influenza from October through April during the 2010-2019 influenza seasons. Data were pulled from the U.S. Influenza Hospitalization Surveillance Network (FluSurv-NET).

Of those women, 2,697 (28%) were pregnant. Median age was 28 and median gestational age was 32 weeks. Those studied included 36% who were non-Hispanic White; 29% non-Hispanic Black; and 20% Hispanic women.

Some 89% of the women, pregnant and nonpregnant, received antivirals while in the hospital but only 31% reported they had received the flu vaccine in the current season, despite guideline recommendations citing clear evidence that vaccination is safe for mother and baby.

Rachel Holstein, MPH, an epidemiology and information science fellow at the Centers for Disease Control and Prevention, who presented her team’s work as part of IDWeek 2020, explained that the mother’s vaccination can help protect the baby from flu infection for several months after birth, before the baby can be vaccinated.

She noted that pregnant women are at high risk for influenza-associated hospitalization.

“Changes in the immune system, heart, and lungs during pregnancy make pregnant women, and women up to 2 weeks post partum, more prone to severe illness from flu, including illness resulting in hospitalization,” she said in an interview

“Vaccination has been shown to reduce the risk of flu-associated acute respiratory infection in pregnant women by up to one-half,” she said. “A 2018 study showed that getting a flu shot reduced a pregnant woman’s risk of being hospitalized with flu by an average of 40%.»

FluSurv-NET data show hospitalizations were more common in the third trimester of pregnancy compared with the first and second, Holstein said. The most common underlying conditions among these women were asthma (23%) and obesity (10%), and 12% were current tobacco smokers. Overall, 5% of pregnant women with flu required ICU admission, 2% needed mechanical ventilation, and 6% developed pneumonia.
 

Vaccine uptake lowest in first two trimesters

Holstein said vaccine coverage was lowest among women in their first or second trimesters for all 9 seasons, and overall vaccination coverage increased significantly over time.

Uptake also differed by age. The data showed coverage was lower among women aged 15-34 years, compared with women 35 years and older (34% vs. 50%).

“It was as low as 15% among pregnant women aged 15-34 years in the 2011-12 season,” she added.

Jeanne Sheffield, MD, director of the division of maternal-fetal medicine at Johns Hopkins Medicine, Baltimore, said in an interview the low uptake of vaccine shown in this study is both familiar and frustrating.

She said education from health care providers has improved, but women are nonetheless frequently fearful. She pointed out the widespread phenomenon of vaccine hesitancy in the general population.

Coverage was 45.3% among adults in the 2018-2019 flu season, 8.2 percentage points higher than coverage during the 2017-18 season (37.1%) according to CDC estimates.

Added to that, she said, is further hesitancy when women believe vaccination could harm the unborn baby, despite “very good data that flu vaccine is safe in pregnancy, acceptable in pregnancy in all trimesters, and is optimal standard of care.”

Holstein added, “We know from past research that a range of factors – including negative attitudes and beliefs about vaccines, less knowledge about and access to vaccines, and a lack of trust in healthcare providers and vaccines – can contribute to lower vaccination rates.”

Healthcare providers play a key role in increasing flu vaccinations among pregnant women, she said.

“A provider recommendation, combined with an offer to administer a flu vaccine at the time of visit, remains one of the best ways to accomplish this,” Holstein said.

Holstein and Sheffield have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

The number of patients who presented with acute HIV infections at the University of Chicago’s ED more than doubled this year. At the same time, routine HIV visits dropped in the surrounding area.

David Pitrak, MD, an infectious diseases specialist at the University of Chicago Medicine, and colleagues found that the incidence ratio of acute HIV infection (AHI) jumped to 14.4 this year, compared with the 6.8 average for the previous 4 years (IR, 2.14; 95% confidence interval, 1.01-4.54; P < .05).

At a press conference at IDWeek 2020, he said that this year, acute patients made up one quarter of all new diagnoses (9 of 35), “the highest percentage we have ever seen.

“Patients with acute infection, especially those with symptoms, have extremely high viral loads and progress more rapidly. Because of those high viral loads, there’s risk of transmission to others, so rapid linkage to care and ART [antiretroviral treatment] is really important,” he said.

After the IDWeek abstract was submitted in September, Dr. Pitrak said, three additional AHI cases were diagnosed in the ED, bringing the IR of AHI during the pandemic to 2.57 (95% CI, 1.29-5.11).
 

Should all EDs link HIV screening to COVID-19 testing?

The ED at UCM incorporated blood draws for HIV screening as part of COVID-19 evaluations early on during the pandemic, and they recommend that practice for EDs across the nation.

After a positive test result, the ID team was able to quickly link the HIV patients to care and initiation of antiretroviral treatment without adding staff or resources, Dr. Pitrak said in an interview.

Dr. Pitrak and colleagues reviewed data from 13 health care centers on the south and west sides of Chicago. At most of the centers, fourth- and fifth-generation antibody tests were available. The investigators found that the number of HIV screens that were conducted dropped significantly during the COVID-19 pandemic.

At the height of the pandemic, HIV screening at the sites decreased an average of 58%, the researchers found. As of the end of June, the number was decreased by 32%.

“This is a global problem,” he said. “HIV services have been severely impacted worldwide, with the greatest impact on the LGBTQ community.”

UCM performed 19,111 HIV screens (11,133 in the ED) between Jan. 1 and Aug. 17 this year. It performed 14,754 COVID polymerase chain reaction tests in the ED between March 17 and Aug. 17. All of the acute cases were identified in the ED.

Dr. Pitrak mentioned some possible causes of an increase in the number of patients with acute cases who present in the ED. People who do not suspect they have AHI may be coming to the ED because they think they have COVID-19, inasmuch as many of the symptoms overlap. One of the AHI patients actually did have a coinfection, Dr. Pitrak noted.

“There is also the possibility that this could be bad news,” Dr. Pitrak said in an interview. “It could be that there are more acute cases presenting because there are more community transmissions.”

He noted that follow-up visits have been canceled or converted to telehealth visits during the pandemic, and the number of patients who are initiating pre-exposure prophylaxis has declined significantly.

“I hope we’re not seeing an increase in new transmissions after so much work has been done to decrease transmissions over the past few years,” he said.
 

Partnership with emergency physicians

Critical to screening these patients is building a solid partnership between ID and ED physicians.

Coauthor Kimberly Stanford, MD, MPH, an assistant professor in emergency medicine at UCM, said, “You need a champion within the emergency department who can help make sure that the work flow is not disrupted, that however you implement your screening program, you’re not putting extra work on the staff.

“We can feel extremely confident that if I send a test and it comes back positive, I know someone is going to call that patient and make sure they get into care.”

Although the testing is performed in the ED at UCM, the follow-up, linkage to care, and initiation of treatment are conducted by the ID specialists.

Beverly E. Sha, MD, professor in the division of infectious diseases, department of internal medicine, Rush Medical College, Chicago, said in an interview that although she agrees that HIV screening programs in EDs “make absolute sense,” there are different ways to conduct such programs. Dr. Sha was not involved in Dr. Pitrak’s study.

At Rush’s ED, she says, HIV testing is linked with a complete blood count.

“If someone presents with fever, we would often be doing that test as well,” she said. “I think just globally increasing screening [in the ED] is what makes the most sense.”

Dr. Sha said they have not seen a similar surge in acute cases in the ED at Rush during the pandemic.

She noted, however, that UCM tested more than 11,000 people for HIV in the ED this year, whereas “we probably only did about 3500.

“The reason testing is so important, whether for HIV or COVID, is the more you test, the more you’re going to find,” she said, “especially in cities like Chicago.”

Dr. Pitrak received grant support from Gilead Sciences. His coauthors and Dr. Sha reported no relevant financial relationships.

This article first appeared on Medscape.com.

The number of patients who presented with acute HIV infections at the University of Chicago’s ED more than doubled this year. At the same time, routine HIV visits dropped in the surrounding area.

David Pitrak, MD, an infectious diseases specialist at the University of Chicago Medicine, and colleagues found that the incidence ratio of acute HIV infection (AHI) jumped to 14.4 this year, compared with the 6.8 average for the previous 4 years (IR, 2.14; 95% confidence interval, 1.01-4.54; P < .05).

At a press conference at IDWeek 2020, he said that this year, acute patients made up one quarter of all new diagnoses (9 of 35), “the highest percentage we have ever seen.

“Patients with acute infection, especially those with symptoms, have extremely high viral loads and progress more rapidly. Because of those high viral loads, there’s risk of transmission to others, so rapid linkage to care and ART [antiretroviral treatment] is really important,” he said.

After the IDWeek abstract was submitted in September, Dr. Pitrak said, three additional AHI cases were diagnosed in the ED, bringing the IR of AHI during the pandemic to 2.57 (95% CI, 1.29-5.11).
 

Should all EDs link HIV screening to COVID-19 testing?

The ED at UCM incorporated blood draws for HIV screening as part of COVID-19 evaluations early on during the pandemic, and they recommend that practice for EDs across the nation.

After a positive test result, the ID team was able to quickly link the HIV patients to care and initiation of antiretroviral treatment without adding staff or resources, Dr. Pitrak said in an interview.

Dr. Pitrak and colleagues reviewed data from 13 health care centers on the south and west sides of Chicago. At most of the centers, fourth- and fifth-generation antibody tests were available. The investigators found that the number of HIV screens that were conducted dropped significantly during the COVID-19 pandemic.

At the height of the pandemic, HIV screening at the sites decreased an average of 58%, the researchers found. As of the end of June, the number was decreased by 32%.

“This is a global problem,” he said. “HIV services have been severely impacted worldwide, with the greatest impact on the LGBTQ community.”

UCM performed 19,111 HIV screens (11,133 in the ED) between Jan. 1 and Aug. 17 this year. It performed 14,754 COVID polymerase chain reaction tests in the ED between March 17 and Aug. 17. All of the acute cases were identified in the ED.

Dr. Pitrak mentioned some possible causes of an increase in the number of patients with acute cases who present in the ED. People who do not suspect they have AHI may be coming to the ED because they think they have COVID-19, inasmuch as many of the symptoms overlap. One of the AHI patients actually did have a coinfection, Dr. Pitrak noted.

“There is also the possibility that this could be bad news,” Dr. Pitrak said in an interview. “It could be that there are more acute cases presenting because there are more community transmissions.”

He noted that follow-up visits have been canceled or converted to telehealth visits during the pandemic, and the number of patients who are initiating pre-exposure prophylaxis has declined significantly.

“I hope we’re not seeing an increase in new transmissions after so much work has been done to decrease transmissions over the past few years,” he said.
 

Partnership with emergency physicians

Critical to screening these patients is building a solid partnership between ID and ED physicians.

Coauthor Kimberly Stanford, MD, MPH, an assistant professor in emergency medicine at UCM, said, “You need a champion within the emergency department who can help make sure that the work flow is not disrupted, that however you implement your screening program, you’re not putting extra work on the staff.

“We can feel extremely confident that if I send a test and it comes back positive, I know someone is going to call that patient and make sure they get into care.”

Although the testing is performed in the ED at UCM, the follow-up, linkage to care, and initiation of treatment are conducted by the ID specialists.

Beverly E. Sha, MD, professor in the division of infectious diseases, department of internal medicine, Rush Medical College, Chicago, said in an interview that although she agrees that HIV screening programs in EDs “make absolute sense,” there are different ways to conduct such programs. Dr. Sha was not involved in Dr. Pitrak’s study.

At Rush’s ED, she says, HIV testing is linked with a complete blood count.

“If someone presents with fever, we would often be doing that test as well,” she said. “I think just globally increasing screening [in the ED] is what makes the most sense.”

Dr. Sha said they have not seen a similar surge in acute cases in the ED at Rush during the pandemic.

She noted, however, that UCM tested more than 11,000 people for HIV in the ED this year, whereas “we probably only did about 3500.

“The reason testing is so important, whether for HIV or COVID, is the more you test, the more you’re going to find,” she said, “especially in cities like Chicago.”

Dr. Pitrak received grant support from Gilead Sciences. His coauthors and Dr. Sha reported no relevant financial relationships.

This article first appeared on Medscape.com.

The number of patients who presented with acute HIV infections at the University of Chicago’s ED more than doubled this year. At the same time, routine HIV visits dropped in the surrounding area.

David Pitrak, MD, an infectious diseases specialist at the University of Chicago Medicine, and colleagues found that the incidence ratio of acute HIV infection (AHI) jumped to 14.4 this year, compared with the 6.8 average for the previous 4 years (IR, 2.14; 95% confidence interval, 1.01-4.54; P < .05).

At a press conference at IDWeek 2020, he said that this year, acute patients made up one quarter of all new diagnoses (9 of 35), “the highest percentage we have ever seen.

“Patients with acute infection, especially those with symptoms, have extremely high viral loads and progress more rapidly. Because of those high viral loads, there’s risk of transmission to others, so rapid linkage to care and ART [antiretroviral treatment] is really important,” he said.

After the IDWeek abstract was submitted in September, Dr. Pitrak said, three additional AHI cases were diagnosed in the ED, bringing the IR of AHI during the pandemic to 2.57 (95% CI, 1.29-5.11).
 

Should all EDs link HIV screening to COVID-19 testing?

The ED at UCM incorporated blood draws for HIV screening as part of COVID-19 evaluations early on during the pandemic, and they recommend that practice for EDs across the nation.

After a positive test result, the ID team was able to quickly link the HIV patients to care and initiation of antiretroviral treatment without adding staff or resources, Dr. Pitrak said in an interview.

Dr. Pitrak and colleagues reviewed data from 13 health care centers on the south and west sides of Chicago. At most of the centers, fourth- and fifth-generation antibody tests were available. The investigators found that the number of HIV screens that were conducted dropped significantly during the COVID-19 pandemic.

At the height of the pandemic, HIV screening at the sites decreased an average of 58%, the researchers found. As of the end of June, the number was decreased by 32%.

“This is a global problem,” he said. “HIV services have been severely impacted worldwide, with the greatest impact on the LGBTQ community.”

UCM performed 19,111 HIV screens (11,133 in the ED) between Jan. 1 and Aug. 17 this year. It performed 14,754 COVID polymerase chain reaction tests in the ED between March 17 and Aug. 17. All of the acute cases were identified in the ED.

Dr. Pitrak mentioned some possible causes of an increase in the number of patients with acute cases who present in the ED. People who do not suspect they have AHI may be coming to the ED because they think they have COVID-19, inasmuch as many of the symptoms overlap. One of the AHI patients actually did have a coinfection, Dr. Pitrak noted.

“There is also the possibility that this could be bad news,” Dr. Pitrak said in an interview. “It could be that there are more acute cases presenting because there are more community transmissions.”

He noted that follow-up visits have been canceled or converted to telehealth visits during the pandemic, and the number of patients who are initiating pre-exposure prophylaxis has declined significantly.

“I hope we’re not seeing an increase in new transmissions after so much work has been done to decrease transmissions over the past few years,” he said.
 

Partnership with emergency physicians

Critical to screening these patients is building a solid partnership between ID and ED physicians.

Coauthor Kimberly Stanford, MD, MPH, an assistant professor in emergency medicine at UCM, said, “You need a champion within the emergency department who can help make sure that the work flow is not disrupted, that however you implement your screening program, you’re not putting extra work on the staff.

“We can feel extremely confident that if I send a test and it comes back positive, I know someone is going to call that patient and make sure they get into care.”

Although the testing is performed in the ED at UCM, the follow-up, linkage to care, and initiation of treatment are conducted by the ID specialists.

Beverly E. Sha, MD, professor in the division of infectious diseases, department of internal medicine, Rush Medical College, Chicago, said in an interview that although she agrees that HIV screening programs in EDs “make absolute sense,” there are different ways to conduct such programs. Dr. Sha was not involved in Dr. Pitrak’s study.

At Rush’s ED, she says, HIV testing is linked with a complete blood count.

“If someone presents with fever, we would often be doing that test as well,” she said. “I think just globally increasing screening [in the ED] is what makes the most sense.”

Dr. Sha said they have not seen a similar surge in acute cases in the ED at Rush during the pandemic.

She noted, however, that UCM tested more than 11,000 people for HIV in the ED this year, whereas “we probably only did about 3500.

“The reason testing is so important, whether for HIV or COVID, is the more you test, the more you’re going to find,” she said, “especially in cities like Chicago.”

Dr. Pitrak received grant support from Gilead Sciences. His coauthors and Dr. Sha reported no relevant financial relationships.

This article first appeared on Medscape.com.

Some medical societies feature sessions at their annual meetings that feel like they’re 24 hours long, yet few have the courage to schedule a session that actually runs all day and all night. But the five societies sponsoring the IDWeek conference had that courage. The first 24 hours of the meeting was devoted to the most pressing infectious-disease crisis of the last 100 years: the COVID-19 pandemic. They called it “COVID-19: Chasing the Sun.”

Dr. Fauci predicts a vaccine answer in mid-November

In the first segment, at 10 am Eastern time, Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and the nation’s top infectious-disease expert, began the day by noting that five of the six companies the US invested in to develop a vaccine are conducting phase 3 trials. He said, “we feel confident that we will have an answer likely in mid-November to the beginning of December as to whether we have a safe and effective vaccine”. He added he was “cautiously optimistic” that “we will have a safe and effective vaccine by the end of the year, which we can begin to distribute as we go into 2021.” He highlighted the COVID-19 Prevention Network website for more information on the trials.

Glaring racial health disparities in U.S.

Some of the most glaring health disparities surrounding COVID-19 in the United States were described by Carlos del Rio, MD, professor of medicine at Emory University in Atlanta, Georgia. He pointed out that while white people have about 23 cases per 10,000 population, Blacks have about 62 cases per 10,000, and Latinos have 73 cases per 10,000. While whites don’t see a huge jump in cases until age 80, he said, “among Blacks and Latinos you start seeing that huge increase at a younger age. In fact, starting at age 20, you start seeing a major, major change.”

COVID-19 diagnostics

Audrey Odom John, MD, PhD, chief of pediatric infectious diseases at Children’s Hospital of Philadelphia, is working on a new way of diagnosing COVID-19 infection in children by testing their breath. “We’re really taking advantage of a fundamental biological fact, which is that people stink,” she said. Breath shows the health of the body as a whole, “and it’s easy to see how breath volatiles might arise from a respiratory infection.” Testing breath is easy and inexpensive, which makes it particularly attractive as a potential test globally, she said.

Long-term effects of COVID-19

Post-COVID illness threatens to overwhelm the health system in the United States, even if only 1% of the 8 million people who have been infected have some sort of long-term deficit, “which would be a very conservative estimate,” said John O’Horo, MD, MPH, with the Mayo Clinic in Rochester, Minn. Neurologic dysfunction is going to be a “fairly significant thing to keep an eye on,” he added. Preeti Malani, MD, chief health officer in infectious diseases at the University of Michigan, Ann Arbor, said the emotional aspects of the illness are “striking” and may be the major long-term effect for most patients.

Challenging cases in COVID-19: Through fire and water

In a case presented to panelists during an afternoon session, a Mexican-born woman, 42, presents to urgent care with fever, dyspnea, dry cough, and pleuritic pain, for over a week. Multiple family members have had recent respiratory illness as well. She is obese, on no medications, was not traveling. She’s a nonsmoker and lives in a multigenerational household in the Mission District of San Francisco. Her heart rate is 116, respiratory rate is 36, and her oxygen saturation on room air is 77%. She is admitted to a local hospital and quickly declines, is intubated and started on hydroxychloroquine (HCQ). One day later she is transferred to a hospital for consideration of extracorporeal membrane oxygenation (ECMO).

Panelists were asked a variety of questions about how they would treat this patient. For example, would they continue HCQ? Ravina Kullar, PharmD, MPH, an infectious disease expert from Newport Beach, Calif., answered that she would not continue the HCQ because of lack of evidence and potential harms. Asked whether she would start remdesivir, Dr. Kullar said she would steer her away from that if the patient developed renal failure. Co-moderator Peter Chin-Hong, MD, a medical educator with the University of California, San Francisco, noted that contact tracing will be important as the patient returns to her housing-dense community.
 

In-hospital infection prevention

The CDC acknowledged aerosol spread of COVID-19 this month, but David Weber, MD, MPH, professor in infectious diseases at the University of North Carolina at Chapel Hill, said, “this does not change anything we need to do in the hospital,” as long as protective pandemic protocols continue to be followed.

There is no evidence, he noted, that SARS-CoV-2 is transmitted far enough that a hospitalized patient could infect people in other rooms or corridors or floors. Opening windows in COVID-19 patients’ rooms is “not an option,” he said, and could be harmful as fungal elements in outside air may introduce new pathogens. The degree to which improved ventilation systems reduce transmission has not been identified and studies are needed to look at that, he said.
 

Preventing COVID transmission in the community

Mary-Margaret Fill, MD, deputy state epidemiologist in Tennessee, highlighted COVID-19’s spread in prisons. As of mid-October, she said, there are more than 147,000 cases among the U.S. prison population and there have been 1,246 deaths. This translates to a case rate of about 9800 cases per 100,000 people, she said, “double the highest case rate for any state in the country and over three times greater than our national case rate of about 2,500 cases per 100,000 persons.”

Testing varies widely, she noted. For instance, some states test only new prisoners, and some test only when they are symptomatic. One of the strategies to fight this spread is having staff, who go in and out of the community, be assigned to work with only certain groups at a prison. Another is widespread testing of all prisoners. And when prisoners have to leave the prison for care or court dates, a third strategy would be quarantining them upon their return.
 

COVID-19 vaccines

As the session stretched into the evening in the United States, Mary Marovich, MD, director of vaccine research, AIDS division, with the National Institute of Allergy and Infectious Diseases and the National Institutes of Health, said while each of the government-funded vaccine studies has its own trial, there are standardized objectives for direct comparisons. The studies are being conducted within the same clinical trial networks, and collaborative laboratories apply the same immunoassays and define the infections in the same way. They are all randomized, placebo-controlled trials and all but one have a 30,000-volunteer sample size. She said that while a vaccine is the goal to end the pandemic, monoclonal antibodies, such as those in convalescent plasma, “may serve as a critical bridge.”

The good, the bad, and the ugly during COVID-19 in Latin America

Latin America and the Caribbean are currently the regions hardest hit by COVID-19. Gustavo D. Lopardo, of the Asociacion Panamericana de Infectologia, noted that even before the pandemic Latin America suffered from widespread poverty and inequality. While overcrowding and poverty are determining factors in the spread of the virus, diabetes and obesity – both highly prevalent – are worsening COVID outcomes.

The countries of the region have dealt with asynchronous waves of transmission within their borders by implementing different containment strategies, with dissimilar results. The presenters covered the spectrum of the pandemic, from the “ugly” in Peru, which has the highest mortality rate in the region, to the “good” in Uruguay, where testing is “winning against COVID-19.” Paradoxically, Chile has both the highest cumulative incidence and the lowest case fatality rate of COVID-19 in the region.

In the social and political turmoil imposed by COVID-19, Clóvis Arns da Cunha, MD, president of the Brazilian Society of Infectious Diseases and professor at the Federal University of Paraná, pointed out that “fake news [has become] a public health problem in Brazil” and elsewhere.
 

Diagnostics and therapeutics in Latin America

Eleven of the 15 countries with the highest death rate in the world are located in Latin America or the Caribbean. Dr. Arns de Cunha pointed out that tests are hard to come by and inadequate diagnostic testing is a major problem. Latin American countries have not been able to compete with the United States and Europe in purchasing polymerase chain reaction test kits from China and South Korea. The test is the best diagnostic tool in the first week of symptoms, but its scale-up has proved to be a challenge in Latin America.

Furthermore, the most sensitive serological markers, CLIA and ECLIA, which perform best after 2 weeks of symptom onset, are not widely available in Latin America where many patients do not have access to the public health system. The detection of silent hypoxemia in symptomatic patients with COVID-19 can save lives; hence, Arns da Cunha praised the program that distributed 100,000 digital oximeters to hundreds of cities in Brazil, targeting vulnerable populations.
 

The COVID-19 experience in Japan

Takuya Yamagishi, MD, PhD, chief of the Antimicrobial Resistance Research Center at the National Institute of Infectious Diseases in Japan, played an instrumental role in the epidemiological investigation that took place on the Diamond Princess Cruise Ship in February 2020. That COVID-19 outbreak is the largest disease outbreak involving a cruise ship to date, with 712 confirmed COVID-19 cases and 13 deaths.

The ship-based quarantine prompted a massive public health response with unique challenges. In those early days, investigators uncovered important facts about COVID-19 epidemiology, generating hot debates regarding the public health strategy at the time. Notably, the majority of asymptomatically infected persons remained asymptomatic throughout the course of the infection, transmission from asymptomatic cases was almost as likely as transmission from symptomatic cases, and isolation of passengers in their cabins prevented inter-cabin transmission but not intra-cabin transmission.
 

Swift response in Asia Pacific region

Infectious-disease experts from Taiwan, Singapore, and Australia, who have been at the forefront of clinical care, research, and policy-making, spoke about their experiences.

Taiwan was one of the first countries to adopt a swift response to COVID-19, shortly after they recognized an outbreak of pneumonia of unknown etiology in China and long before the WHO declared a public health emergency, said Ping-Ing Lee, MD, PhD, from the National Taiwan University Children’s Hospital.

The country began onboard health checks on flights from Wuhan as early as Dec. 31, 2019. Dr. Lee attributed Taiwan’s success in prevention and control of COVID-19 to the rigorous use of face masks and environmental disinfection procedures. Regarding the country’s antilockdown stance, he said, “Lockdown may be effective; however, it is associated with a tremendous economic loss.”

In his presentation on remdesivir vs corticosteroids, David Lye, MBBS, said, “I think remdesivir as an antiviral seems to work well given early, but steroids will need to be studied further in terms of its conflicting evidence in multiple well-designed RCTs as well as [their] potential side effects.” He is director of the Infectious Disease Research and Training Office, National Centre for Infectious Diseases, Singapore.

Allen C. Cheng, MBBS, PhD, of Monash University in Melbourne, noted that “control is possible. We seemed to have controlled this twice at the moment with fairly draconian action, but every day does matter.”
 

China past the first wave

China has already passed the first wave, explained Lei Zhou, MD, of the Chinese Center for Disease Control and Prevention, but there are still some small-scale resurgences. So far a total of four waves have been identified. She also mentioned that contact tracing is intense and highlighted the case of Xinfadi Market in Beijing, the site of an outbreak in June 2020.

Gui-Qiang Wang, MD, from the Department of Infectious Disease, Peking University First Hospital, emphasized the importance of a chest CT for the diagnosis of COVID-19. “In the early stage of the disease, patients may not show any symptoms; however, on CT scan you can see pneumonia. Also, early intervention of high-risk groups and monitoring of warning indicators for disease progression is extremely important,” he said.

“Early antiviral therapy is expected to stop progression, but still needs evaluation,” he said. “Convalescent plasma is safe and effective, but its source is limited; steroid therapy needs to explore appropriate population and timing; and thymosin α is safe, and its effect on outcomes needs large-sample clinical trial.”

Time to Call for an ‘Arab CDC?’

The eastern Mediterranean is geographically, politically, economically, and religiously a very distinct and sensitive region, and “COVID-19 is an added insult to this already frail region of the world,” said Zaid Haddadin, MD, Vanderbilt University Medical Center, Nashville, Tenn.

Poor healthcare and poor public health services are a consequence of weak and fragile governments and infrastructure, the result of war and regional conflicts in many countries. Millions of war refugees live in camps with high population densities and shared facilities, which makes social distancing and community mitigation very challenging. Moreover, the culture includes frequent large social gatherings. Millions of pilgrims visit holy sites in different cities in these countries. There is also movement due to trade and tourism. Travel restrictions are challenging, and there is limited comprehension of precautionary measures.

Najwa Khuri-Bulos, professor of pediatrics and infectious diseases at the University of Jordan, was part of a task force headed by the country’s Ministry of Health. A lockdown was implemented, which helped flatten the curve, but the loosening of restrictions has led to a recent increase in cases. She said, “No country can succeed in controlling spread without the regional collaboration. Perhaps it is time to adopt the call for an Arab CDC.”
 

Africa is “not out of the woods yet”

The Africa CDC has three key pillars as the foundation for their COVID-19 strategy: preventing transmission, preventing deaths, and preventing social harm, according to Raji Tajudeen, MBBS, FWACP, MPH, head of the agency’s Public Health Institutes and Research Division. Africa, with 1.5 million cases of COVID-19, accounts for 5% of global cases. With a recovery rate of 83% and a case fatality rate of 2.4%, the African continent has fared much better than the rest of the world. “Significant improvements have been made, but we are not out of the woods yet,” he cautioned.

Richard Lessells, PhD, from the University of KwaZulu-Natal, agreed. “Unfortunately, South Africa has not been spared from the worst effects of this pandemic despite what you might read in the press and scientific coverage.” He added, “Over 50% of cases and up to two thirds of the deaths in the African region are coming from South Africa.” A bigger challenge for South Africa has been maintaining essential health services during the COVID-19 pandemic, especially since it is also at the heart of the HIV pandemic. On the brighter side, HIV itself has not emerged as a risk factor for COVID-19 infection or severe disease in South Africa.

Dimie Ogoina, MBBS, FWACP, president of the Nigerian Infectious Diseases Society, stated that COVID-19 has significantly affected access to healthcare in Nigeria, particularly immunizations and antenatal care. Immunization uptake is likely to have dropped by 50% in the country.
 

Diagnostic pitfalls in COVID-19

Technical errors associated with the SARS-CoV-2 diagnostic pipeline are a major source of variations in diagnosis, explained Jim Huggett, PhD, senior lecturer, analytical microbiology, University of Surrey, Guildford, England. He believes that PCR assays are currently too biased for a single cutoff to be broadly used, and false-positive signals are most likely because of contamination.

Dana Wolf, MD, Clinical Virology Unit, Hadassah Hebrew University Medical Center in Israel, presented a large-scale data analysis of more than 133,000 pooled samples. Such a pooling strategy appeared to be highly efficient for a wide range of prevalence rates (<1% to 6%). “Our empirical evidence strongly projects on the feasibility and benefits of pooling in the current pandemic setting, to enhance continued surveillance, control, and community reopening,” she said.

Corine Geurts van Kessel, MD, PhD, Department of Virology, Erasmus University Rotterdam (the Netherlands), discussing antibodies testing for SARS-CoV-2, pointed out that disease severity can affect testing accuracy. “Reinfection cases tell us that we cannot rely on immunity acquired by natural infection to confer herd immunity,” she said.
 

Misinformation in the first digital pandemic

The world is not only facing a devastating pandemic, but also an alarming “infodemic” of misinformation. Between January and March 2020, a new COVID-19–related tweet appeared on Twitter every 45 milliseconds. Müge Çevik, MD, MSc, MRCP, an infectious disease clinician, scientist, and science communicator, said that “the greatest challenge for science communication is reaching the audience.”

People have always been skeptical of science reporting by journalists and would rather have scientists communicate with them directly, she noted. Science communication plays a dual role. “On one hand is the need to promote science to a wide audience in order to inform and educate and inspire the next generation of scientists, and on the other hand there is also a need to engage effectively in public dialogue,” she added. Dr. Çevik and colleagues think that “The responsibility of academics should not end with finding the truth. It should end after communicating it.”
 

Treatment in the ICU

Matteo Bassetti, MD, with the University of Genoa (Italy), who was asked about when to use remdesivir in the intensive care unit and for how long, said, “In the majority of cases, 5 days is probably enough.” However, if there is high viremia, he said, physicians may choose to continue the regimen beyond 5 days. Data show it is important to prescribe this drug for patients with oxygen support in an early phase, within 10 days of the first symptoms, he added. “In the late phase, there is a very limited role for remdesivir, as we know that we are already out of the viremic phase.” He also emphasized that there is no role for hydroxychloroquine or lopinavir-ritonavir.

Breaking the chains of transmission

During the wrap-up session, former US CDC Director Tom Frieden, MD, said, “We’re not even halfway through it” about the pandemic trajectory. “And we have to be very clear that the risk of explosive spread will not end with a vaccine.” He is now president and CEO of Resolve to Save Lives.

Different parts of the world will have very different experiences, Dr. Frieden said, noting that Africa, where 4% of the population is older than 65, has a very different risk level than Europe and the United States, where 10%-20% of people are in older age groups.

“We need a one-two punch,” he noted, first preventing spread, and when it does happen, boxing it in. Mask wearing is essential. “States in the US that mandated universal mask-wearing experienced much more rapid declines (in cases) for every 5 days the mandate was in place.”

Michael Ryan, MD, executive director for the WHO’s Health Emergencies Programme, added, “We need to collectively recommit to winning this game. We know how to break the chains of transmission. We need recommitment to a scientific, societal, and political strategy, and an alliance – a contract – between those entities to try to move us forward.”

This article first appeared on Medscape.com.

Some medical societies feature sessions at their annual meetings that feel like they’re 24 hours long, yet few have the courage to schedule a session that actually runs all day and all night. But the five societies sponsoring the IDWeek conference had that courage. The first 24 hours of the meeting was devoted to the most pressing infectious-disease crisis of the last 100 years: the COVID-19 pandemic. They called it “COVID-19: Chasing the Sun.”

Dr. Fauci predicts a vaccine answer in mid-November

In the first segment, at 10 am Eastern time, Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and the nation’s top infectious-disease expert, began the day by noting that five of the six companies the US invested in to develop a vaccine are conducting phase 3 trials. He said, “we feel confident that we will have an answer likely in mid-November to the beginning of December as to whether we have a safe and effective vaccine”. He added he was “cautiously optimistic” that “we will have a safe and effective vaccine by the end of the year, which we can begin to distribute as we go into 2021.” He highlighted the COVID-19 Prevention Network website for more information on the trials.

Glaring racial health disparities in U.S.

Some of the most glaring health disparities surrounding COVID-19 in the United States were described by Carlos del Rio, MD, professor of medicine at Emory University in Atlanta, Georgia. He pointed out that while white people have about 23 cases per 10,000 population, Blacks have about 62 cases per 10,000, and Latinos have 73 cases per 10,000. While whites don’t see a huge jump in cases until age 80, he said, “among Blacks and Latinos you start seeing that huge increase at a younger age. In fact, starting at age 20, you start seeing a major, major change.”

COVID-19 diagnostics

Audrey Odom John, MD, PhD, chief of pediatric infectious diseases at Children’s Hospital of Philadelphia, is working on a new way of diagnosing COVID-19 infection in children by testing their breath. “We’re really taking advantage of a fundamental biological fact, which is that people stink,” she said. Breath shows the health of the body as a whole, “and it’s easy to see how breath volatiles might arise from a respiratory infection.” Testing breath is easy and inexpensive, which makes it particularly attractive as a potential test globally, she said.

Long-term effects of COVID-19

Post-COVID illness threatens to overwhelm the health system in the United States, even if only 1% of the 8 million people who have been infected have some sort of long-term deficit, “which would be a very conservative estimate,” said John O’Horo, MD, MPH, with the Mayo Clinic in Rochester, Minn. Neurologic dysfunction is going to be a “fairly significant thing to keep an eye on,” he added. Preeti Malani, MD, chief health officer in infectious diseases at the University of Michigan, Ann Arbor, said the emotional aspects of the illness are “striking” and may be the major long-term effect for most patients.

Challenging cases in COVID-19: Through fire and water

In a case presented to panelists during an afternoon session, a Mexican-born woman, 42, presents to urgent care with fever, dyspnea, dry cough, and pleuritic pain, for over a week. Multiple family members have had recent respiratory illness as well. She is obese, on no medications, was not traveling. She’s a nonsmoker and lives in a multigenerational household in the Mission District of San Francisco. Her heart rate is 116, respiratory rate is 36, and her oxygen saturation on room air is 77%. She is admitted to a local hospital and quickly declines, is intubated and started on hydroxychloroquine (HCQ). One day later she is transferred to a hospital for consideration of extracorporeal membrane oxygenation (ECMO).

Panelists were asked a variety of questions about how they would treat this patient. For example, would they continue HCQ? Ravina Kullar, PharmD, MPH, an infectious disease expert from Newport Beach, Calif., answered that she would not continue the HCQ because of lack of evidence and potential harms. Asked whether she would start remdesivir, Dr. Kullar said she would steer her away from that if the patient developed renal failure. Co-moderator Peter Chin-Hong, MD, a medical educator with the University of California, San Francisco, noted that contact tracing will be important as the patient returns to her housing-dense community.
 

In-hospital infection prevention

The CDC acknowledged aerosol spread of COVID-19 this month, but David Weber, MD, MPH, professor in infectious diseases at the University of North Carolina at Chapel Hill, said, “this does not change anything we need to do in the hospital,” as long as protective pandemic protocols continue to be followed.

There is no evidence, he noted, that SARS-CoV-2 is transmitted far enough that a hospitalized patient could infect people in other rooms or corridors or floors. Opening windows in COVID-19 patients’ rooms is “not an option,” he said, and could be harmful as fungal elements in outside air may introduce new pathogens. The degree to which improved ventilation systems reduce transmission has not been identified and studies are needed to look at that, he said.
 

Preventing COVID transmission in the community

Mary-Margaret Fill, MD, deputy state epidemiologist in Tennessee, highlighted COVID-19’s spread in prisons. As of mid-October, she said, there are more than 147,000 cases among the U.S. prison population and there have been 1,246 deaths. This translates to a case rate of about 9800 cases per 100,000 people, she said, “double the highest case rate for any state in the country and over three times greater than our national case rate of about 2,500 cases per 100,000 persons.”

Testing varies widely, she noted. For instance, some states test only new prisoners, and some test only when they are symptomatic. One of the strategies to fight this spread is having staff, who go in and out of the community, be assigned to work with only certain groups at a prison. Another is widespread testing of all prisoners. And when prisoners have to leave the prison for care or court dates, a third strategy would be quarantining them upon their return.
 

COVID-19 vaccines

As the session stretched into the evening in the United States, Mary Marovich, MD, director of vaccine research, AIDS division, with the National Institute of Allergy and Infectious Diseases and the National Institutes of Health, said while each of the government-funded vaccine studies has its own trial, there are standardized objectives for direct comparisons. The studies are being conducted within the same clinical trial networks, and collaborative laboratories apply the same immunoassays and define the infections in the same way. They are all randomized, placebo-controlled trials and all but one have a 30,000-volunteer sample size. She said that while a vaccine is the goal to end the pandemic, monoclonal antibodies, such as those in convalescent plasma, “may serve as a critical bridge.”

The good, the bad, and the ugly during COVID-19 in Latin America

Latin America and the Caribbean are currently the regions hardest hit by COVID-19. Gustavo D. Lopardo, of the Asociacion Panamericana de Infectologia, noted that even before the pandemic Latin America suffered from widespread poverty and inequality. While overcrowding and poverty are determining factors in the spread of the virus, diabetes and obesity – both highly prevalent – are worsening COVID outcomes.

The countries of the region have dealt with asynchronous waves of transmission within their borders by implementing different containment strategies, with dissimilar results. The presenters covered the spectrum of the pandemic, from the “ugly” in Peru, which has the highest mortality rate in the region, to the “good” in Uruguay, where testing is “winning against COVID-19.” Paradoxically, Chile has both the highest cumulative incidence and the lowest case fatality rate of COVID-19 in the region.

In the social and political turmoil imposed by COVID-19, Clóvis Arns da Cunha, MD, president of the Brazilian Society of Infectious Diseases and professor at the Federal University of Paraná, pointed out that “fake news [has become] a public health problem in Brazil” and elsewhere.
 

Diagnostics and therapeutics in Latin America

Eleven of the 15 countries with the highest death rate in the world are located in Latin America or the Caribbean. Dr. Arns de Cunha pointed out that tests are hard to come by and inadequate diagnostic testing is a major problem. Latin American countries have not been able to compete with the United States and Europe in purchasing polymerase chain reaction test kits from China and South Korea. The test is the best diagnostic tool in the first week of symptoms, but its scale-up has proved to be a challenge in Latin America.

Furthermore, the most sensitive serological markers, CLIA and ECLIA, which perform best after 2 weeks of symptom onset, are not widely available in Latin America where many patients do not have access to the public health system. The detection of silent hypoxemia in symptomatic patients with COVID-19 can save lives; hence, Arns da Cunha praised the program that distributed 100,000 digital oximeters to hundreds of cities in Brazil, targeting vulnerable populations.
 

The COVID-19 experience in Japan

Takuya Yamagishi, MD, PhD, chief of the Antimicrobial Resistance Research Center at the National Institute of Infectious Diseases in Japan, played an instrumental role in the epidemiological investigation that took place on the Diamond Princess Cruise Ship in February 2020. That COVID-19 outbreak is the largest disease outbreak involving a cruise ship to date, with 712 confirmed COVID-19 cases and 13 deaths.

The ship-based quarantine prompted a massive public health response with unique challenges. In those early days, investigators uncovered important facts about COVID-19 epidemiology, generating hot debates regarding the public health strategy at the time. Notably, the majority of asymptomatically infected persons remained asymptomatic throughout the course of the infection, transmission from asymptomatic cases was almost as likely as transmission from symptomatic cases, and isolation of passengers in their cabins prevented inter-cabin transmission but not intra-cabin transmission.
 

Swift response in Asia Pacific region

Infectious-disease experts from Taiwan, Singapore, and Australia, who have been at the forefront of clinical care, research, and policy-making, spoke about their experiences.

Taiwan was one of the first countries to adopt a swift response to COVID-19, shortly after they recognized an outbreak of pneumonia of unknown etiology in China and long before the WHO declared a public health emergency, said Ping-Ing Lee, MD, PhD, from the National Taiwan University Children’s Hospital.

The country began onboard health checks on flights from Wuhan as early as Dec. 31, 2019. Dr. Lee attributed Taiwan’s success in prevention and control of COVID-19 to the rigorous use of face masks and environmental disinfection procedures. Regarding the country’s antilockdown stance, he said, “Lockdown may be effective; however, it is associated with a tremendous economic loss.”

In his presentation on remdesivir vs corticosteroids, David Lye, MBBS, said, “I think remdesivir as an antiviral seems to work well given early, but steroids will need to be studied further in terms of its conflicting evidence in multiple well-designed RCTs as well as [their] potential side effects.” He is director of the Infectious Disease Research and Training Office, National Centre for Infectious Diseases, Singapore.

Allen C. Cheng, MBBS, PhD, of Monash University in Melbourne, noted that “control is possible. We seemed to have controlled this twice at the moment with fairly draconian action, but every day does matter.”
 

China past the first wave

China has already passed the first wave, explained Lei Zhou, MD, of the Chinese Center for Disease Control and Prevention, but there are still some small-scale resurgences. So far a total of four waves have been identified. She also mentioned that contact tracing is intense and highlighted the case of Xinfadi Market in Beijing, the site of an outbreak in June 2020.

Gui-Qiang Wang, MD, from the Department of Infectious Disease, Peking University First Hospital, emphasized the importance of a chest CT for the diagnosis of COVID-19. “In the early stage of the disease, patients may not show any symptoms; however, on CT scan you can see pneumonia. Also, early intervention of high-risk groups and monitoring of warning indicators for disease progression is extremely important,” he said.

“Early antiviral therapy is expected to stop progression, but still needs evaluation,” he said. “Convalescent plasma is safe and effective, but its source is limited; steroid therapy needs to explore appropriate population and timing; and thymosin α is safe, and its effect on outcomes needs large-sample clinical trial.”

Time to Call for an ‘Arab CDC?’

The eastern Mediterranean is geographically, politically, economically, and religiously a very distinct and sensitive region, and “COVID-19 is an added insult to this already frail region of the world,” said Zaid Haddadin, MD, Vanderbilt University Medical Center, Nashville, Tenn.

Poor healthcare and poor public health services are a consequence of weak and fragile governments and infrastructure, the result of war and regional conflicts in many countries. Millions of war refugees live in camps with high population densities and shared facilities, which makes social distancing and community mitigation very challenging. Moreover, the culture includes frequent large social gatherings. Millions of pilgrims visit holy sites in different cities in these countries. There is also movement due to trade and tourism. Travel restrictions are challenging, and there is limited comprehension of precautionary measures.

Najwa Khuri-Bulos, professor of pediatrics and infectious diseases at the University of Jordan, was part of a task force headed by the country’s Ministry of Health. A lockdown was implemented, which helped flatten the curve, but the loosening of restrictions has led to a recent increase in cases. She said, “No country can succeed in controlling spread without the regional collaboration. Perhaps it is time to adopt the call for an Arab CDC.”
 

Africa is “not out of the woods yet”

The Africa CDC has three key pillars as the foundation for their COVID-19 strategy: preventing transmission, preventing deaths, and preventing social harm, according to Raji Tajudeen, MBBS, FWACP, MPH, head of the agency’s Public Health Institutes and Research Division. Africa, with 1.5 million cases of COVID-19, accounts for 5% of global cases. With a recovery rate of 83% and a case fatality rate of 2.4%, the African continent has fared much better than the rest of the world. “Significant improvements have been made, but we are not out of the woods yet,” he cautioned.

Richard Lessells, PhD, from the University of KwaZulu-Natal, agreed. “Unfortunately, South Africa has not been spared from the worst effects of this pandemic despite what you might read in the press and scientific coverage.” He added, “Over 50% of cases and up to two thirds of the deaths in the African region are coming from South Africa.” A bigger challenge for South Africa has been maintaining essential health services during the COVID-19 pandemic, especially since it is also at the heart of the HIV pandemic. On the brighter side, HIV itself has not emerged as a risk factor for COVID-19 infection or severe disease in South Africa.

Dimie Ogoina, MBBS, FWACP, president of the Nigerian Infectious Diseases Society, stated that COVID-19 has significantly affected access to healthcare in Nigeria, particularly immunizations and antenatal care. Immunization uptake is likely to have dropped by 50% in the country.
 

Diagnostic pitfalls in COVID-19

Technical errors associated with the SARS-CoV-2 diagnostic pipeline are a major source of variations in diagnosis, explained Jim Huggett, PhD, senior lecturer, analytical microbiology, University of Surrey, Guildford, England. He believes that PCR assays are currently too biased for a single cutoff to be broadly used, and false-positive signals are most likely because of contamination.

Dana Wolf, MD, Clinical Virology Unit, Hadassah Hebrew University Medical Center in Israel, presented a large-scale data analysis of more than 133,000 pooled samples. Such a pooling strategy appeared to be highly efficient for a wide range of prevalence rates (<1% to 6%). “Our empirical evidence strongly projects on the feasibility and benefits of pooling in the current pandemic setting, to enhance continued surveillance, control, and community reopening,” she said.

Corine Geurts van Kessel, MD, PhD, Department of Virology, Erasmus University Rotterdam (the Netherlands), discussing antibodies testing for SARS-CoV-2, pointed out that disease severity can affect testing accuracy. “Reinfection cases tell us that we cannot rely on immunity acquired by natural infection to confer herd immunity,” she said.
 

Misinformation in the first digital pandemic

The world is not only facing a devastating pandemic, but also an alarming “infodemic” of misinformation. Between January and March 2020, a new COVID-19–related tweet appeared on Twitter every 45 milliseconds. Müge Çevik, MD, MSc, MRCP, an infectious disease clinician, scientist, and science communicator, said that “the greatest challenge for science communication is reaching the audience.”

People have always been skeptical of science reporting by journalists and would rather have scientists communicate with them directly, she noted. Science communication plays a dual role. “On one hand is the need to promote science to a wide audience in order to inform and educate and inspire the next generation of scientists, and on the other hand there is also a need to engage effectively in public dialogue,” she added. Dr. Çevik and colleagues think that “The responsibility of academics should not end with finding the truth. It should end after communicating it.”
 

Treatment in the ICU

Matteo Bassetti, MD, with the University of Genoa (Italy), who was asked about when to use remdesivir in the intensive care unit and for how long, said, “In the majority of cases, 5 days is probably enough.” However, if there is high viremia, he said, physicians may choose to continue the regimen beyond 5 days. Data show it is important to prescribe this drug for patients with oxygen support in an early phase, within 10 days of the first symptoms, he added. “In the late phase, there is a very limited role for remdesivir, as we know that we are already out of the viremic phase.” He also emphasized that there is no role for hydroxychloroquine or lopinavir-ritonavir.

Breaking the chains of transmission

During the wrap-up session, former US CDC Director Tom Frieden, MD, said, “We’re not even halfway through it” about the pandemic trajectory. “And we have to be very clear that the risk of explosive spread will not end with a vaccine.” He is now president and CEO of Resolve to Save Lives.

Different parts of the world will have very different experiences, Dr. Frieden said, noting that Africa, where 4% of the population is older than 65, has a very different risk level than Europe and the United States, where 10%-20% of people are in older age groups.

“We need a one-two punch,” he noted, first preventing spread, and when it does happen, boxing it in. Mask wearing is essential. “States in the US that mandated universal mask-wearing experienced much more rapid declines (in cases) for every 5 days the mandate was in place.”

Michael Ryan, MD, executive director for the WHO’s Health Emergencies Programme, added, “We need to collectively recommit to winning this game. We know how to break the chains of transmission. We need recommitment to a scientific, societal, and political strategy, and an alliance – a contract – between those entities to try to move us forward.”

This article first appeared on Medscape.com.

Some medical societies feature sessions at their annual meetings that feel like they’re 24 hours long, yet few have the courage to schedule a session that actually runs all day and all night. But the five societies sponsoring the IDWeek conference had that courage. The first 24 hours of the meeting was devoted to the most pressing infectious-disease crisis of the last 100 years: the COVID-19 pandemic. They called it “COVID-19: Chasing the Sun.”

Dr. Fauci predicts a vaccine answer in mid-November

In the first segment, at 10 am Eastern time, Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and the nation’s top infectious-disease expert, began the day by noting that five of the six companies the US invested in to develop a vaccine are conducting phase 3 trials. He said, “we feel confident that we will have an answer likely in mid-November to the beginning of December as to whether we have a safe and effective vaccine”. He added he was “cautiously optimistic” that “we will have a safe and effective vaccine by the end of the year, which we can begin to distribute as we go into 2021.” He highlighted the COVID-19 Prevention Network website for more information on the trials.

Glaring racial health disparities in U.S.

Some of the most glaring health disparities surrounding COVID-19 in the United States were described by Carlos del Rio, MD, professor of medicine at Emory University in Atlanta, Georgia. He pointed out that while white people have about 23 cases per 10,000 population, Blacks have about 62 cases per 10,000, and Latinos have 73 cases per 10,000. While whites don’t see a huge jump in cases until age 80, he said, “among Blacks and Latinos you start seeing that huge increase at a younger age. In fact, starting at age 20, you start seeing a major, major change.”

COVID-19 diagnostics

Audrey Odom John, MD, PhD, chief of pediatric infectious diseases at Children’s Hospital of Philadelphia, is working on a new way of diagnosing COVID-19 infection in children by testing their breath. “We’re really taking advantage of a fundamental biological fact, which is that people stink,” she said. Breath shows the health of the body as a whole, “and it’s easy to see how breath volatiles might arise from a respiratory infection.” Testing breath is easy and inexpensive, which makes it particularly attractive as a potential test globally, she said.

Long-term effects of COVID-19

Post-COVID illness threatens to overwhelm the health system in the United States, even if only 1% of the 8 million people who have been infected have some sort of long-term deficit, “which would be a very conservative estimate,” said John O’Horo, MD, MPH, with the Mayo Clinic in Rochester, Minn. Neurologic dysfunction is going to be a “fairly significant thing to keep an eye on,” he added. Preeti Malani, MD, chief health officer in infectious diseases at the University of Michigan, Ann Arbor, said the emotional aspects of the illness are “striking” and may be the major long-term effect for most patients.

Challenging cases in COVID-19: Through fire and water

In a case presented to panelists during an afternoon session, a Mexican-born woman, 42, presents to urgent care with fever, dyspnea, dry cough, and pleuritic pain, for over a week. Multiple family members have had recent respiratory illness as well. She is obese, on no medications, was not traveling. She’s a nonsmoker and lives in a multigenerational household in the Mission District of San Francisco. Her heart rate is 116, respiratory rate is 36, and her oxygen saturation on room air is 77%. She is admitted to a local hospital and quickly declines, is intubated and started on hydroxychloroquine (HCQ). One day later she is transferred to a hospital for consideration of extracorporeal membrane oxygenation (ECMO).

Panelists were asked a variety of questions about how they would treat this patient. For example, would they continue HCQ? Ravina Kullar, PharmD, MPH, an infectious disease expert from Newport Beach, Calif., answered that she would not continue the HCQ because of lack of evidence and potential harms. Asked whether she would start remdesivir, Dr. Kullar said she would steer her away from that if the patient developed renal failure. Co-moderator Peter Chin-Hong, MD, a medical educator with the University of California, San Francisco, noted that contact tracing will be important as the patient returns to her housing-dense community.
 

In-hospital infection prevention

The CDC acknowledged aerosol spread of COVID-19 this month, but David Weber, MD, MPH, professor in infectious diseases at the University of North Carolina at Chapel Hill, said, “this does not change anything we need to do in the hospital,” as long as protective pandemic protocols continue to be followed.

There is no evidence, he noted, that SARS-CoV-2 is transmitted far enough that a hospitalized patient could infect people in other rooms or corridors or floors. Opening windows in COVID-19 patients’ rooms is “not an option,” he said, and could be harmful as fungal elements in outside air may introduce new pathogens. The degree to which improved ventilation systems reduce transmission has not been identified and studies are needed to look at that, he said.
 

Preventing COVID transmission in the community

Mary-Margaret Fill, MD, deputy state epidemiologist in Tennessee, highlighted COVID-19’s spread in prisons. As of mid-October, she said, there are more than 147,000 cases among the U.S. prison population and there have been 1,246 deaths. This translates to a case rate of about 9800 cases per 100,000 people, she said, “double the highest case rate for any state in the country and over three times greater than our national case rate of about 2,500 cases per 100,000 persons.”

Testing varies widely, she noted. For instance, some states test only new prisoners, and some test only when they are symptomatic. One of the strategies to fight this spread is having staff, who go in and out of the community, be assigned to work with only certain groups at a prison. Another is widespread testing of all prisoners. And when prisoners have to leave the prison for care or court dates, a third strategy would be quarantining them upon their return.
 

COVID-19 vaccines

As the session stretched into the evening in the United States, Mary Marovich, MD, director of vaccine research, AIDS division, with the National Institute of Allergy and Infectious Diseases and the National Institutes of Health, said while each of the government-funded vaccine studies has its own trial, there are standardized objectives for direct comparisons. The studies are being conducted within the same clinical trial networks, and collaborative laboratories apply the same immunoassays and define the infections in the same way. They are all randomized, placebo-controlled trials and all but one have a 30,000-volunteer sample size. She said that while a vaccine is the goal to end the pandemic, monoclonal antibodies, such as those in convalescent plasma, “may serve as a critical bridge.”

The good, the bad, and the ugly during COVID-19 in Latin America

Latin America and the Caribbean are currently the regions hardest hit by COVID-19. Gustavo D. Lopardo, of the Asociacion Panamericana de Infectologia, noted that even before the pandemic Latin America suffered from widespread poverty and inequality. While overcrowding and poverty are determining factors in the spread of the virus, diabetes and obesity – both highly prevalent – are worsening COVID outcomes.

The countries of the region have dealt with asynchronous waves of transmission within their borders by implementing different containment strategies, with dissimilar results. The presenters covered the spectrum of the pandemic, from the “ugly” in Peru, which has the highest mortality rate in the region, to the “good” in Uruguay, where testing is “winning against COVID-19.” Paradoxically, Chile has both the highest cumulative incidence and the lowest case fatality rate of COVID-19 in the region.

In the social and political turmoil imposed by COVID-19, Clóvis Arns da Cunha, MD, president of the Brazilian Society of Infectious Diseases and professor at the Federal University of Paraná, pointed out that “fake news [has become] a public health problem in Brazil” and elsewhere.
 

Diagnostics and therapeutics in Latin America

Eleven of the 15 countries with the highest death rate in the world are located in Latin America or the Caribbean. Dr. Arns de Cunha pointed out that tests are hard to come by and inadequate diagnostic testing is a major problem. Latin American countries have not been able to compete with the United States and Europe in purchasing polymerase chain reaction test kits from China and South Korea. The test is the best diagnostic tool in the first week of symptoms, but its scale-up has proved to be a challenge in Latin America.

Furthermore, the most sensitive serological markers, CLIA and ECLIA, which perform best after 2 weeks of symptom onset, are not widely available in Latin America where many patients do not have access to the public health system. The detection of silent hypoxemia in symptomatic patients with COVID-19 can save lives; hence, Arns da Cunha praised the program that distributed 100,000 digital oximeters to hundreds of cities in Brazil, targeting vulnerable populations.
 

The COVID-19 experience in Japan

Takuya Yamagishi, MD, PhD, chief of the Antimicrobial Resistance Research Center at the National Institute of Infectious Diseases in Japan, played an instrumental role in the epidemiological investigation that took place on the Diamond Princess Cruise Ship in February 2020. That COVID-19 outbreak is the largest disease outbreak involving a cruise ship to date, with 712 confirmed COVID-19 cases and 13 deaths.

The ship-based quarantine prompted a massive public health response with unique challenges. In those early days, investigators uncovered important facts about COVID-19 epidemiology, generating hot debates regarding the public health strategy at the time. Notably, the majority of asymptomatically infected persons remained asymptomatic throughout the course of the infection, transmission from asymptomatic cases was almost as likely as transmission from symptomatic cases, and isolation of passengers in their cabins prevented inter-cabin transmission but not intra-cabin transmission.
 

Swift response in Asia Pacific region

Infectious-disease experts from Taiwan, Singapore, and Australia, who have been at the forefront of clinical care, research, and policy-making, spoke about their experiences.

Taiwan was one of the first countries to adopt a swift response to COVID-19, shortly after they recognized an outbreak of pneumonia of unknown etiology in China and long before the WHO declared a public health emergency, said Ping-Ing Lee, MD, PhD, from the National Taiwan University Children’s Hospital.

The country began onboard health checks on flights from Wuhan as early as Dec. 31, 2019. Dr. Lee attributed Taiwan’s success in prevention and control of COVID-19 to the rigorous use of face masks and environmental disinfection procedures. Regarding the country’s antilockdown stance, he said, “Lockdown may be effective; however, it is associated with a tremendous economic loss.”

In his presentation on remdesivir vs corticosteroids, David Lye, MBBS, said, “I think remdesivir as an antiviral seems to work well given early, but steroids will need to be studied further in terms of its conflicting evidence in multiple well-designed RCTs as well as [their] potential side effects.” He is director of the Infectious Disease Research and Training Office, National Centre for Infectious Diseases, Singapore.

Allen C. Cheng, MBBS, PhD, of Monash University in Melbourne, noted that “control is possible. We seemed to have controlled this twice at the moment with fairly draconian action, but every day does matter.”
 

China past the first wave

China has already passed the first wave, explained Lei Zhou, MD, of the Chinese Center for Disease Control and Prevention, but there are still some small-scale resurgences. So far a total of four waves have been identified. She also mentioned that contact tracing is intense and highlighted the case of Xinfadi Market in Beijing, the site of an outbreak in June 2020.

Gui-Qiang Wang, MD, from the Department of Infectious Disease, Peking University First Hospital, emphasized the importance of a chest CT for the diagnosis of COVID-19. “In the early stage of the disease, patients may not show any symptoms; however, on CT scan you can see pneumonia. Also, early intervention of high-risk groups and monitoring of warning indicators for disease progression is extremely important,” he said.

“Early antiviral therapy is expected to stop progression, but still needs evaluation,” he said. “Convalescent plasma is safe and effective, but its source is limited; steroid therapy needs to explore appropriate population and timing; and thymosin α is safe, and its effect on outcomes needs large-sample clinical trial.”

Time to Call for an ‘Arab CDC?’

The eastern Mediterranean is geographically, politically, economically, and religiously a very distinct and sensitive region, and “COVID-19 is an added insult to this already frail region of the world,” said Zaid Haddadin, MD, Vanderbilt University Medical Center, Nashville, Tenn.

Poor healthcare and poor public health services are a consequence of weak and fragile governments and infrastructure, the result of war and regional conflicts in many countries. Millions of war refugees live in camps with high population densities and shared facilities, which makes social distancing and community mitigation very challenging. Moreover, the culture includes frequent large social gatherings. Millions of pilgrims visit holy sites in different cities in these countries. There is also movement due to trade and tourism. Travel restrictions are challenging, and there is limited comprehension of precautionary measures.

Najwa Khuri-Bulos, professor of pediatrics and infectious diseases at the University of Jordan, was part of a task force headed by the country’s Ministry of Health. A lockdown was implemented, which helped flatten the curve, but the loosening of restrictions has led to a recent increase in cases. She said, “No country can succeed in controlling spread without the regional collaboration. Perhaps it is time to adopt the call for an Arab CDC.”
 

Africa is “not out of the woods yet”

The Africa CDC has three key pillars as the foundation for their COVID-19 strategy: preventing transmission, preventing deaths, and preventing social harm, according to Raji Tajudeen, MBBS, FWACP, MPH, head of the agency’s Public Health Institutes and Research Division. Africa, with 1.5 million cases of COVID-19, accounts for 5% of global cases. With a recovery rate of 83% and a case fatality rate of 2.4%, the African continent has fared much better than the rest of the world. “Significant improvements have been made, but we are not out of the woods yet,” he cautioned.

Richard Lessells, PhD, from the University of KwaZulu-Natal, agreed. “Unfortunately, South Africa has not been spared from the worst effects of this pandemic despite what you might read in the press and scientific coverage.” He added, “Over 50% of cases and up to two thirds of the deaths in the African region are coming from South Africa.” A bigger challenge for South Africa has been maintaining essential health services during the COVID-19 pandemic, especially since it is also at the heart of the HIV pandemic. On the brighter side, HIV itself has not emerged as a risk factor for COVID-19 infection or severe disease in South Africa.

Dimie Ogoina, MBBS, FWACP, president of the Nigerian Infectious Diseases Society, stated that COVID-19 has significantly affected access to healthcare in Nigeria, particularly immunizations and antenatal care. Immunization uptake is likely to have dropped by 50% in the country.
 

Diagnostic pitfalls in COVID-19

Technical errors associated with the SARS-CoV-2 diagnostic pipeline are a major source of variations in diagnosis, explained Jim Huggett, PhD, senior lecturer, analytical microbiology, University of Surrey, Guildford, England. He believes that PCR assays are currently too biased for a single cutoff to be broadly used, and false-positive signals are most likely because of contamination.

Dana Wolf, MD, Clinical Virology Unit, Hadassah Hebrew University Medical Center in Israel, presented a large-scale data analysis of more than 133,000 pooled samples. Such a pooling strategy appeared to be highly efficient for a wide range of prevalence rates (<1% to 6%). “Our empirical evidence strongly projects on the feasibility and benefits of pooling in the current pandemic setting, to enhance continued surveillance, control, and community reopening,” she said.

Corine Geurts van Kessel, MD, PhD, Department of Virology, Erasmus University Rotterdam (the Netherlands), discussing antibodies testing for SARS-CoV-2, pointed out that disease severity can affect testing accuracy. “Reinfection cases tell us that we cannot rely on immunity acquired by natural infection to confer herd immunity,” she said.
 

Misinformation in the first digital pandemic

The world is not only facing a devastating pandemic, but also an alarming “infodemic” of misinformation. Between January and March 2020, a new COVID-19–related tweet appeared on Twitter every 45 milliseconds. Müge Çevik, MD, MSc, MRCP, an infectious disease clinician, scientist, and science communicator, said that “the greatest challenge for science communication is reaching the audience.”

People have always been skeptical of science reporting by journalists and would rather have scientists communicate with them directly, she noted. Science communication plays a dual role. “On one hand is the need to promote science to a wide audience in order to inform and educate and inspire the next generation of scientists, and on the other hand there is also a need to engage effectively in public dialogue,” she added. Dr. Çevik and colleagues think that “The responsibility of academics should not end with finding the truth. It should end after communicating it.”
 

Treatment in the ICU

Matteo Bassetti, MD, with the University of Genoa (Italy), who was asked about when to use remdesivir in the intensive care unit and for how long, said, “In the majority of cases, 5 days is probably enough.” However, if there is high viremia, he said, physicians may choose to continue the regimen beyond 5 days. Data show it is important to prescribe this drug for patients with oxygen support in an early phase, within 10 days of the first symptoms, he added. “In the late phase, there is a very limited role for remdesivir, as we know that we are already out of the viremic phase.” He also emphasized that there is no role for hydroxychloroquine or lopinavir-ritonavir.

Breaking the chains of transmission

During the wrap-up session, former US CDC Director Tom Frieden, MD, said, “We’re not even halfway through it” about the pandemic trajectory. “And we have to be very clear that the risk of explosive spread will not end with a vaccine.” He is now president and CEO of Resolve to Save Lives.

Different parts of the world will have very different experiences, Dr. Frieden said, noting that Africa, where 4% of the population is older than 65, has a very different risk level than Europe and the United States, where 10%-20% of people are in older age groups.

“We need a one-two punch,” he noted, first preventing spread, and when it does happen, boxing it in. Mask wearing is essential. “States in the US that mandated universal mask-wearing experienced much more rapid declines (in cases) for every 5 days the mandate was in place.”

Michael Ryan, MD, executive director for the WHO’s Health Emergencies Programme, added, “We need to collectively recommit to winning this game. We know how to break the chains of transmission. We need recommitment to a scientific, societal, and political strategy, and an alliance – a contract – between those entities to try to move us forward.”

This article first appeared on Medscape.com.

Only 30.6% of American adolescents complete three routinely recommended vaccinations, new research has found, but that number varies widely by state.

The Advisory Committee on Immunization Practices recommends that, by age 17 years, adolescents complete three key immunizations: human papillomavirus (HPV), quadrivalent meningococcal conjugate (MenACWY), and Tdap.

Sara Poston, PharmD, senior director for health outcomes research at GlaxoSmithKline, said at a press conference during IDWeek, an annual scientific meeting on infectious diseases held virtually this year, that her team set out to determine how many teens were completing the vaccinations and how the number varied by state and by behavioral factors.

Completion of the vaccines means getting the HPV series (two doses for people aged 9-14 years at first vaccination or three doses for those aged 15 years or older at first vaccination), completion of the MenACWY series (two doses), and getting a Tdap vaccine (one dose).
 

Rhode Island has the highest rates

Some states are clearly doing better than others. Idaho had the lowest completion rate (11.3%; 95% confidence interval, 6.9%-18.0%), and Rhode Island had the highest (56.4%; 95% CI, 49.8%-62.8%).

In the 2018 National Immunization Survey–Teen (NIS-Teen), Rhode Island had the highest vaccination coverage rate in the nation for meningococcal vaccine (98.7%) and the second-highest coverage rate for Tdap (96.3%) for adolescents aged 13-17 years. Also in 2018, the state had the highest vaccination rates in the nation for the HPV series for both male and female adolescents 13-17 years of age (78.1%), well above the national average of 51.1%.

Researchers used information from the Centers for Disease Control and Prevention as well as 2015-2018 NIS-Teen data to estimate national and state-level completion rates by age 17. They then combined NIS-Teen data with public state-level data to evaluate what was driving or discouraging completion.

“The good news is, we found some variables that we consider actionable and can be used by states and local health departments to improve the rates,” Dr. Poston said.

Those include encouraging a health care visit at age 16 or 17, provider recommendations to families to get the HPV vaccine, and state-level mandates for the MenACWY vaccine.

Those who had a health care visit at 16 or 17 were more than twice as likely to complete their vaccines (odds ratio, 2.35; 95% CI, 1.80-3.07). Those for whom HPV vaccination had ever been recommended by a health care provider were more than three times as likely to complete their vaccinations (OR, 3.24; 95% CI, 2.76-3.80).

Other factors predictive of completing the vaccines included being Black or Hispanic and having Medicaid insurance.

At the state level, “living in a state with a mandate for the meningococcal ACWY vaccine in elementary or secondary school was also associated with likelihood of vaccination,” Dr. Poston said. Teens in states with mandates were 60% more likely to complete the vaccines than those in states without mandates. (OR, 1.6; 95% CI, 1.2-2.3)

Marielle Fricchione, MD, assistant professor of pediatric infectious diseases at Rush Medical College, Chicago said in an interview, “Teen vaccines are notoriously hard to get into kids because it’s hard to get them back into the office for second doses.”

She said that Illinois is one of the states with a two-dose mandate for MenACWY before entering 6th grade and 12th grade, which has kept vaccination coverage high.

Educating providers on how to recommend HPV vaccination is the biggest vaccine focus, she added.
 

Schedule next dose at first visit

One thing her department has found successful in HPV completion is scheduling the second dose while the teen is in the office for the first dose.

“Also, you have to recommend it just as strongly for boys as you do for girls, because oropharyngeal cancer is like an epidemic right now for men, and HPV-related oropharyngeal cancer is on an exponential rise,” Dr. Fricchione said.

According to the CDC, HPV is thought to cause 70% of oropharyngeal cancers in the United States.

Equipping providers with statistics on the effectiveness of HPV vaccination in preventing cancer can take away the uneasiness in talking about sexual transmission.

“That really seems to help them give a strong recommendation. It puts them in a data-driven position to talk about the vaccine,” she said. “Once you put that data in front of the providers, they’re floored.”

Research was funded by GlaxoSmithKline. Dr. Poston is employed by GlaxoSmithKline. Dr. Fricchione disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Only 30.6% of American adolescents complete three routinely recommended vaccinations, new research has found, but that number varies widely by state.

The Advisory Committee on Immunization Practices recommends that, by age 17 years, adolescents complete three key immunizations: human papillomavirus (HPV), quadrivalent meningococcal conjugate (MenACWY), and Tdap.

Sara Poston, PharmD, senior director for health outcomes research at GlaxoSmithKline, said at a press conference during IDWeek, an annual scientific meeting on infectious diseases held virtually this year, that her team set out to determine how many teens were completing the vaccinations and how the number varied by state and by behavioral factors.

Completion of the vaccines means getting the HPV series (two doses for people aged 9-14 years at first vaccination or three doses for those aged 15 years or older at first vaccination), completion of the MenACWY series (two doses), and getting a Tdap vaccine (one dose).
 

Rhode Island has the highest rates

Some states are clearly doing better than others. Idaho had the lowest completion rate (11.3%; 95% confidence interval, 6.9%-18.0%), and Rhode Island had the highest (56.4%; 95% CI, 49.8%-62.8%).

In the 2018 National Immunization Survey–Teen (NIS-Teen), Rhode Island had the highest vaccination coverage rate in the nation for meningococcal vaccine (98.7%) and the second-highest coverage rate for Tdap (96.3%) for adolescents aged 13-17 years. Also in 2018, the state had the highest vaccination rates in the nation for the HPV series for both male and female adolescents 13-17 years of age (78.1%), well above the national average of 51.1%.

Researchers used information from the Centers for Disease Control and Prevention as well as 2015-2018 NIS-Teen data to estimate national and state-level completion rates by age 17. They then combined NIS-Teen data with public state-level data to evaluate what was driving or discouraging completion.

“The good news is, we found some variables that we consider actionable and can be used by states and local health departments to improve the rates,” Dr. Poston said.

Those include encouraging a health care visit at age 16 or 17, provider recommendations to families to get the HPV vaccine, and state-level mandates for the MenACWY vaccine.

Those who had a health care visit at 16 or 17 were more than twice as likely to complete their vaccines (odds ratio, 2.35; 95% CI, 1.80-3.07). Those for whom HPV vaccination had ever been recommended by a health care provider were more than three times as likely to complete their vaccinations (OR, 3.24; 95% CI, 2.76-3.80).

Other factors predictive of completing the vaccines included being Black or Hispanic and having Medicaid insurance.

At the state level, “living in a state with a mandate for the meningococcal ACWY vaccine in elementary or secondary school was also associated with likelihood of vaccination,” Dr. Poston said. Teens in states with mandates were 60% more likely to complete the vaccines than those in states without mandates. (OR, 1.6; 95% CI, 1.2-2.3)

Marielle Fricchione, MD, assistant professor of pediatric infectious diseases at Rush Medical College, Chicago said in an interview, “Teen vaccines are notoriously hard to get into kids because it’s hard to get them back into the office for second doses.”

She said that Illinois is one of the states with a two-dose mandate for MenACWY before entering 6th grade and 12th grade, which has kept vaccination coverage high.

Educating providers on how to recommend HPV vaccination is the biggest vaccine focus, she added.
 

Schedule next dose at first visit

One thing her department has found successful in HPV completion is scheduling the second dose while the teen is in the office for the first dose.

“Also, you have to recommend it just as strongly for boys as you do for girls, because oropharyngeal cancer is like an epidemic right now for men, and HPV-related oropharyngeal cancer is on an exponential rise,” Dr. Fricchione said.

According to the CDC, HPV is thought to cause 70% of oropharyngeal cancers in the United States.

Equipping providers with statistics on the effectiveness of HPV vaccination in preventing cancer can take away the uneasiness in talking about sexual transmission.

“That really seems to help them give a strong recommendation. It puts them in a data-driven position to talk about the vaccine,” she said. “Once you put that data in front of the providers, they’re floored.”

Research was funded by GlaxoSmithKline. Dr. Poston is employed by GlaxoSmithKline. Dr. Fricchione disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Only 30.6% of American adolescents complete three routinely recommended vaccinations, new research has found, but that number varies widely by state.

The Advisory Committee on Immunization Practices recommends that, by age 17 years, adolescents complete three key immunizations: human papillomavirus (HPV), quadrivalent meningococcal conjugate (MenACWY), and Tdap.

Sara Poston, PharmD, senior director for health outcomes research at GlaxoSmithKline, said at a press conference during IDWeek, an annual scientific meeting on infectious diseases held virtually this year, that her team set out to determine how many teens were completing the vaccinations and how the number varied by state and by behavioral factors.

Completion of the vaccines means getting the HPV series (two doses for people aged 9-14 years at first vaccination or three doses for those aged 15 years or older at first vaccination), completion of the MenACWY series (two doses), and getting a Tdap vaccine (one dose).
 

Rhode Island has the highest rates

Some states are clearly doing better than others. Idaho had the lowest completion rate (11.3%; 95% confidence interval, 6.9%-18.0%), and Rhode Island had the highest (56.4%; 95% CI, 49.8%-62.8%).

In the 2018 National Immunization Survey–Teen (NIS-Teen), Rhode Island had the highest vaccination coverage rate in the nation for meningococcal vaccine (98.7%) and the second-highest coverage rate for Tdap (96.3%) for adolescents aged 13-17 years. Also in 2018, the state had the highest vaccination rates in the nation for the HPV series for both male and female adolescents 13-17 years of age (78.1%), well above the national average of 51.1%.

Researchers used information from the Centers for Disease Control and Prevention as well as 2015-2018 NIS-Teen data to estimate national and state-level completion rates by age 17. They then combined NIS-Teen data with public state-level data to evaluate what was driving or discouraging completion.

“The good news is, we found some variables that we consider actionable and can be used by states and local health departments to improve the rates,” Dr. Poston said.

Those include encouraging a health care visit at age 16 or 17, provider recommendations to families to get the HPV vaccine, and state-level mandates for the MenACWY vaccine.

Those who had a health care visit at 16 or 17 were more than twice as likely to complete their vaccines (odds ratio, 2.35; 95% CI, 1.80-3.07). Those for whom HPV vaccination had ever been recommended by a health care provider were more than three times as likely to complete their vaccinations (OR, 3.24; 95% CI, 2.76-3.80).

Other factors predictive of completing the vaccines included being Black or Hispanic and having Medicaid insurance.

At the state level, “living in a state with a mandate for the meningococcal ACWY vaccine in elementary or secondary school was also associated with likelihood of vaccination,” Dr. Poston said. Teens in states with mandates were 60% more likely to complete the vaccines than those in states without mandates. (OR, 1.6; 95% CI, 1.2-2.3)

Marielle Fricchione, MD, assistant professor of pediatric infectious diseases at Rush Medical College, Chicago said in an interview, “Teen vaccines are notoriously hard to get into kids because it’s hard to get them back into the office for second doses.”

She said that Illinois is one of the states with a two-dose mandate for MenACWY before entering 6th grade and 12th grade, which has kept vaccination coverage high.

Educating providers on how to recommend HPV vaccination is the biggest vaccine focus, she added.
 

Schedule next dose at first visit

One thing her department has found successful in HPV completion is scheduling the second dose while the teen is in the office for the first dose.

“Also, you have to recommend it just as strongly for boys as you do for girls, because oropharyngeal cancer is like an epidemic right now for men, and HPV-related oropharyngeal cancer is on an exponential rise,” Dr. Fricchione said.

According to the CDC, HPV is thought to cause 70% of oropharyngeal cancers in the United States.

Equipping providers with statistics on the effectiveness of HPV vaccination in preventing cancer can take away the uneasiness in talking about sexual transmission.

“That really seems to help them give a strong recommendation. It puts them in a data-driven position to talk about the vaccine,” she said. “Once you put that data in front of the providers, they’re floored.”

Research was funded by GlaxoSmithKline. Dr. Poston is employed by GlaxoSmithKline. Dr. Fricchione disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Although the efficacy of two pre-exposure prophylaxis (PrEP) regimens containing differing prodrug formulations of tenofovir are virtually identical, the balance between benefit and risk tips in favor of the combination using the older formulation, tenofovir disoproxil fumarate (TDF), a pharmacology researcher said.

An analysis of the pharmacologic profiles of TDF plus emtricitabine (FTC; Truvada and generic) with tenofovir alafenamide (TAF) plus FTC (Descovy) shows that the risk of decreased bone mineral density and renal toxicity with TDF are significantly lower than those of weight gain and related metabolic and cardiovascular problems associated with the newer tenofovir formulation TAF, according to pharmacology research fellow Andrew Hill, MD, PhD, from the University of Liverpool (England).

“I think when we’re comparing these two drugs overall, we have a clear benefit/risk, and we need to take both of these potential toxicities seriously, “ he said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases held virtually this year.

“But in my view, treating women – Black women – with TAF/FTC is a bad thing,” he continued. “I think it’s going lead to more harm, more myocardial infarctions, more cases of diabetes, and potentially more adverse birth outcomes, and I think that is a risk that is not worth taking, given that the apparent benefit in terms of bone mineral density and renal markers is a hypothesis at best, and is not translated into hard clinical endpoints.”
 

Adverse event profiles

Dr. Hill compared the side effect profiles of the two agents when used both in antiretroviral therapy (ART) in combination the integrase inhibitor dolutegravir (DTG; Tivicay), and in PrEP.

World Health Organization guidelines for first-line ART recommend the use of TDF/FTC/DTG, reserving TAF plus lamivudine (3TC) and DTG for use in special circumstances only, Dr. Hill noted.

He pointed to a pooled analysis of data from eight randomized, controlled trials of treatment-naive people living with HIV who started on ART from 2003 to 2015. The authors found that demographic factors associated with weight gain included lower CD4 cell counter, higher levels of HIV type 1 RNA, no injection drug use, female sex, and Black race.

They also found that, among nucleoside/nucleotide reverse transcriptase inhibitors, TAF was associated with more weight gain than TDF, abacavir, or zidovudine.

“This pattern is seen consistently across studies both of pre-exposure prophylaxis or treatment comparing tenofovir with either TAF or other nucleoside analogs,” he said.

The greater weight gain with TAF versus TDF was seen in both treatment trials and in the DISCOVER PrEP trial.

In addition, in a crossover trial conducted in Germany, patients who switched from TDF to TAF had an approximately 2 kg increase in body weight.

TAF has also been associated with higher grade 3 or 4 glucose and LDL cholesterol than TDF in clinical trials for the treatment of hepatitis B infections, and with higher LDL cholesterol and total cholesterol levels as well as diabetes in patients treated with the drugs in combination in the EMERALD HIV trial.

Clinical trials also tend to underestimate the real-world population of persons at highest risk for adverse events from TAF, Dr. Hill said, noting that the percentage of Black women in phase 3 trials for dolutegravir was 9%, compared with 42% among persons infected with HIV worldwide. The respective percentages for Black men are 16% versus 30%. These differences are similar across clinical trial programs for other ART agents.

“Generally, it’s women and Black people who seem to be at greatest risk for safety issues,” he said.

In the ADVANCE trial comparing TAF/FTC/DTG with TDF/FTC/DTG and a control arm of TDF, FTC and efavirenz, the mean change in weight among men after 3 years on the TAF-based regimen was a gain of 7.2 kg (15.9 lbs), compared with 5.5 kg (12 lbs) with TDF, and 2.6 kg (5.7 lbs) with the efavirenz-containing regimen.

In women enrolled in the same trial, the respective mean weight gains were 12.3 kg (27 lbs), 7.4 kg (16.3 lbs), and 5.5 kg (12 lbs).

“All of our analyses so far have shown that the weight continues to go up. We’re actually seeing people doubling in their body weight. We’ve seen some women come into clinic and their doctors don’t even recognize them because they’ve put on so much weight,” he said.

In women, most of the gain in weight occurs as limb or trunk fat, with a predominance of visceral fat.

People taking TAF in the trial were also at significantly greater risk for developing the metabolic syndrome, and at week 96, 27% of women on TAF/FTC/DTG had treatment-emergent obesity, compared with 17% for those on TDF/FTC/DTG and 11% for those on TDF/FTC/EFV. In men, the respective 96-week rates of treatment-emergent obesity were 7%, 3%, and 2%.

Clinical obesity itself is a risk factor for obstetric complications and birth outcomes, Alzheimer’s disease, type 2 diabetes, cardiovascular disease, hypertension and cancer, and an average 4-year reduction in life expectancy, Dr. Hill said. “I think it’s actually very unlikely that the [World Health Organization] guidelines will now change and allow the widespread use of TAF/FTC in combination with integrase inhibitors worldwide given these potential implications.”
 

Modern times

The bad rap that TDF gets for its alleged effects on bone mineral density and kidneys comes from studies where the drug was given in a boosted regimen that can amplify tenofovir toxicities, Dr. Hill said.

He noted that data from Gilead Sciences shows through 7 years of therapy in previously ART-naive patients, the combination of TDF/3TC/EFV showed sustained durable efficacy, no discontinuations to renal adverse effects, and no evidence of clinically relevant bone effects.

“I think we need to be very careful when we look at tenofovir and TAF. We need to look at the more modern way that these drugs are used, which is not with pharmacokinetic boosters anymore, and in that situation the toxicity profile of tenofovir/3TC – the original TDF – is very favorable,” he said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Hill presented his data, said that his clinical experience mirrors the pharmacokinetic findings.

“I certainly have strong feelings about the use of TDF in pre-exposure prophylaxis,” he said in an interview. “TDF is an effective and safe formulation of tenofovir to be used in pre-exposure prophylaxis, and one that we have more experience with. It’s the formulation of tenofovir that I use for all of my patients who are on pre-exposure prophylaxis, and I think it is the most cost-effective.’

No funding source was reported. Andrew Hill consults for Tibotec on clinical trial programs for darunavir, etravirine, and rilpivirine. Dr. Goldstein reported having no relevant disclosures.

Although the efficacy of two pre-exposure prophylaxis (PrEP) regimens containing differing prodrug formulations of tenofovir are virtually identical, the balance between benefit and risk tips in favor of the combination using the older formulation, tenofovir disoproxil fumarate (TDF), a pharmacology researcher said.

An analysis of the pharmacologic profiles of TDF plus emtricitabine (FTC; Truvada and generic) with tenofovir alafenamide (TAF) plus FTC (Descovy) shows that the risk of decreased bone mineral density and renal toxicity with TDF are significantly lower than those of weight gain and related metabolic and cardiovascular problems associated with the newer tenofovir formulation TAF, according to pharmacology research fellow Andrew Hill, MD, PhD, from the University of Liverpool (England).

“I think when we’re comparing these two drugs overall, we have a clear benefit/risk, and we need to take both of these potential toxicities seriously, “ he said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases held virtually this year.

“But in my view, treating women – Black women – with TAF/FTC is a bad thing,” he continued. “I think it’s going lead to more harm, more myocardial infarctions, more cases of diabetes, and potentially more adverse birth outcomes, and I think that is a risk that is not worth taking, given that the apparent benefit in terms of bone mineral density and renal markers is a hypothesis at best, and is not translated into hard clinical endpoints.”
 

Adverse event profiles

Dr. Hill compared the side effect profiles of the two agents when used both in antiretroviral therapy (ART) in combination the integrase inhibitor dolutegravir (DTG; Tivicay), and in PrEP.

World Health Organization guidelines for first-line ART recommend the use of TDF/FTC/DTG, reserving TAF plus lamivudine (3TC) and DTG for use in special circumstances only, Dr. Hill noted.

He pointed to a pooled analysis of data from eight randomized, controlled trials of treatment-naive people living with HIV who started on ART from 2003 to 2015. The authors found that demographic factors associated with weight gain included lower CD4 cell counter, higher levels of HIV type 1 RNA, no injection drug use, female sex, and Black race.

They also found that, among nucleoside/nucleotide reverse transcriptase inhibitors, TAF was associated with more weight gain than TDF, abacavir, or zidovudine.

“This pattern is seen consistently across studies both of pre-exposure prophylaxis or treatment comparing tenofovir with either TAF or other nucleoside analogs,” he said.

The greater weight gain with TAF versus TDF was seen in both treatment trials and in the DISCOVER PrEP trial.

In addition, in a crossover trial conducted in Germany, patients who switched from TDF to TAF had an approximately 2 kg increase in body weight.

TAF has also been associated with higher grade 3 or 4 glucose and LDL cholesterol than TDF in clinical trials for the treatment of hepatitis B infections, and with higher LDL cholesterol and total cholesterol levels as well as diabetes in patients treated with the drugs in combination in the EMERALD HIV trial.

Clinical trials also tend to underestimate the real-world population of persons at highest risk for adverse events from TAF, Dr. Hill said, noting that the percentage of Black women in phase 3 trials for dolutegravir was 9%, compared with 42% among persons infected with HIV worldwide. The respective percentages for Black men are 16% versus 30%. These differences are similar across clinical trial programs for other ART agents.

“Generally, it’s women and Black people who seem to be at greatest risk for safety issues,” he said.

In the ADVANCE trial comparing TAF/FTC/DTG with TDF/FTC/DTG and a control arm of TDF, FTC and efavirenz, the mean change in weight among men after 3 years on the TAF-based regimen was a gain of 7.2 kg (15.9 lbs), compared with 5.5 kg (12 lbs) with TDF, and 2.6 kg (5.7 lbs) with the efavirenz-containing regimen.

In women enrolled in the same trial, the respective mean weight gains were 12.3 kg (27 lbs), 7.4 kg (16.3 lbs), and 5.5 kg (12 lbs).

“All of our analyses so far have shown that the weight continues to go up. We’re actually seeing people doubling in their body weight. We’ve seen some women come into clinic and their doctors don’t even recognize them because they’ve put on so much weight,” he said.

In women, most of the gain in weight occurs as limb or trunk fat, with a predominance of visceral fat.

People taking TAF in the trial were also at significantly greater risk for developing the metabolic syndrome, and at week 96, 27% of women on TAF/FTC/DTG had treatment-emergent obesity, compared with 17% for those on TDF/FTC/DTG and 11% for those on TDF/FTC/EFV. In men, the respective 96-week rates of treatment-emergent obesity were 7%, 3%, and 2%.

Clinical obesity itself is a risk factor for obstetric complications and birth outcomes, Alzheimer’s disease, type 2 diabetes, cardiovascular disease, hypertension and cancer, and an average 4-year reduction in life expectancy, Dr. Hill said. “I think it’s actually very unlikely that the [World Health Organization] guidelines will now change and allow the widespread use of TAF/FTC in combination with integrase inhibitors worldwide given these potential implications.”
 

Modern times

The bad rap that TDF gets for its alleged effects on bone mineral density and kidneys comes from studies where the drug was given in a boosted regimen that can amplify tenofovir toxicities, Dr. Hill said.

He noted that data from Gilead Sciences shows through 7 years of therapy in previously ART-naive patients, the combination of TDF/3TC/EFV showed sustained durable efficacy, no discontinuations to renal adverse effects, and no evidence of clinically relevant bone effects.

“I think we need to be very careful when we look at tenofovir and TAF. We need to look at the more modern way that these drugs are used, which is not with pharmacokinetic boosters anymore, and in that situation the toxicity profile of tenofovir/3TC – the original TDF – is very favorable,” he said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Hill presented his data, said that his clinical experience mirrors the pharmacokinetic findings.

“I certainly have strong feelings about the use of TDF in pre-exposure prophylaxis,” he said in an interview. “TDF is an effective and safe formulation of tenofovir to be used in pre-exposure prophylaxis, and one that we have more experience with. It’s the formulation of tenofovir that I use for all of my patients who are on pre-exposure prophylaxis, and I think it is the most cost-effective.’

No funding source was reported. Andrew Hill consults for Tibotec on clinical trial programs for darunavir, etravirine, and rilpivirine. Dr. Goldstein reported having no relevant disclosures.

Although the efficacy of two pre-exposure prophylaxis (PrEP) regimens containing differing prodrug formulations of tenofovir are virtually identical, the balance between benefit and risk tips in favor of the combination using the older formulation, tenofovir disoproxil fumarate (TDF), a pharmacology researcher said.

An analysis of the pharmacologic profiles of TDF plus emtricitabine (FTC; Truvada and generic) with tenofovir alafenamide (TAF) plus FTC (Descovy) shows that the risk of decreased bone mineral density and renal toxicity with TDF are significantly lower than those of weight gain and related metabolic and cardiovascular problems associated with the newer tenofovir formulation TAF, according to pharmacology research fellow Andrew Hill, MD, PhD, from the University of Liverpool (England).

“I think when we’re comparing these two drugs overall, we have a clear benefit/risk, and we need to take both of these potential toxicities seriously, “ he said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases held virtually this year.

“But in my view, treating women – Black women – with TAF/FTC is a bad thing,” he continued. “I think it’s going lead to more harm, more myocardial infarctions, more cases of diabetes, and potentially more adverse birth outcomes, and I think that is a risk that is not worth taking, given that the apparent benefit in terms of bone mineral density and renal markers is a hypothesis at best, and is not translated into hard clinical endpoints.”
 

Adverse event profiles

Dr. Hill compared the side effect profiles of the two agents when used both in antiretroviral therapy (ART) in combination the integrase inhibitor dolutegravir (DTG; Tivicay), and in PrEP.

World Health Organization guidelines for first-line ART recommend the use of TDF/FTC/DTG, reserving TAF plus lamivudine (3TC) and DTG for use in special circumstances only, Dr. Hill noted.

He pointed to a pooled analysis of data from eight randomized, controlled trials of treatment-naive people living with HIV who started on ART from 2003 to 2015. The authors found that demographic factors associated with weight gain included lower CD4 cell counter, higher levels of HIV type 1 RNA, no injection drug use, female sex, and Black race.

They also found that, among nucleoside/nucleotide reverse transcriptase inhibitors, TAF was associated with more weight gain than TDF, abacavir, or zidovudine.

“This pattern is seen consistently across studies both of pre-exposure prophylaxis or treatment comparing tenofovir with either TAF or other nucleoside analogs,” he said.

The greater weight gain with TAF versus TDF was seen in both treatment trials and in the DISCOVER PrEP trial.

In addition, in a crossover trial conducted in Germany, patients who switched from TDF to TAF had an approximately 2 kg increase in body weight.

TAF has also been associated with higher grade 3 or 4 glucose and LDL cholesterol than TDF in clinical trials for the treatment of hepatitis B infections, and with higher LDL cholesterol and total cholesterol levels as well as diabetes in patients treated with the drugs in combination in the EMERALD HIV trial.

Clinical trials also tend to underestimate the real-world population of persons at highest risk for adverse events from TAF, Dr. Hill said, noting that the percentage of Black women in phase 3 trials for dolutegravir was 9%, compared with 42% among persons infected with HIV worldwide. The respective percentages for Black men are 16% versus 30%. These differences are similar across clinical trial programs for other ART agents.

“Generally, it’s women and Black people who seem to be at greatest risk for safety issues,” he said.

In the ADVANCE trial comparing TAF/FTC/DTG with TDF/FTC/DTG and a control arm of TDF, FTC and efavirenz, the mean change in weight among men after 3 years on the TAF-based regimen was a gain of 7.2 kg (15.9 lbs), compared with 5.5 kg (12 lbs) with TDF, and 2.6 kg (5.7 lbs) with the efavirenz-containing regimen.

In women enrolled in the same trial, the respective mean weight gains were 12.3 kg (27 lbs), 7.4 kg (16.3 lbs), and 5.5 kg (12 lbs).

“All of our analyses so far have shown that the weight continues to go up. We’re actually seeing people doubling in their body weight. We’ve seen some women come into clinic and their doctors don’t even recognize them because they’ve put on so much weight,” he said.

In women, most of the gain in weight occurs as limb or trunk fat, with a predominance of visceral fat.

People taking TAF in the trial were also at significantly greater risk for developing the metabolic syndrome, and at week 96, 27% of women on TAF/FTC/DTG had treatment-emergent obesity, compared with 17% for those on TDF/FTC/DTG and 11% for those on TDF/FTC/EFV. In men, the respective 96-week rates of treatment-emergent obesity were 7%, 3%, and 2%.

Clinical obesity itself is a risk factor for obstetric complications and birth outcomes, Alzheimer’s disease, type 2 diabetes, cardiovascular disease, hypertension and cancer, and an average 4-year reduction in life expectancy, Dr. Hill said. “I think it’s actually very unlikely that the [World Health Organization] guidelines will now change and allow the widespread use of TAF/FTC in combination with integrase inhibitors worldwide given these potential implications.”
 

Modern times

The bad rap that TDF gets for its alleged effects on bone mineral density and kidneys comes from studies where the drug was given in a boosted regimen that can amplify tenofovir toxicities, Dr. Hill said.

He noted that data from Gilead Sciences shows through 7 years of therapy in previously ART-naive patients, the combination of TDF/3TC/EFV showed sustained durable efficacy, no discontinuations to renal adverse effects, and no evidence of clinically relevant bone effects.

“I think we need to be very careful when we look at tenofovir and TAF. We need to look at the more modern way that these drugs are used, which is not with pharmacokinetic boosters anymore, and in that situation the toxicity profile of tenofovir/3TC – the original TDF – is very favorable,” he said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Hill presented his data, said that his clinical experience mirrors the pharmacokinetic findings.

“I certainly have strong feelings about the use of TDF in pre-exposure prophylaxis,” he said in an interview. “TDF is an effective and safe formulation of tenofovir to be used in pre-exposure prophylaxis, and one that we have more experience with. It’s the formulation of tenofovir that I use for all of my patients who are on pre-exposure prophylaxis, and I think it is the most cost-effective.’

No funding source was reported. Andrew Hill consults for Tibotec on clinical trial programs for darunavir, etravirine, and rilpivirine. Dr. Goldstein reported having no relevant disclosures.

A patient-centered approach can help guide persons at risk for HIV exposure to decide on the best choice of pre-exposure prophylaxis (PrEP) regimens for them, stifling the noise generated by direct-to-consumer advertising, an infectious disease specialist recommends.

The decision for patients whether to start or remain on the PrEP combination of tenofovir disoproxil fumarate (TDF) plus emtricitabine (FTC; Truvada and generic) or on tenofovir alafenamide (TAF) plus FTC (Descovy) is made more fraught by confusion regarding the use of the newer and allegedly safer TAF prodrug of tenofovir in HIV treatment regimens, said Oni Blackstock, MD, founder and executive director of Health Justice and an attending physician in the division of infectious diseases at Harlem Hospital, New York.

“There have been commercials on TV as well as on social media around class-action lawsuits against [Truvada maker] Gilead,” she said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases, held virtually this year.

“These lawsuits focus on TDF for HIV treatment, but they have sown a great deal of confusion about TDF versus TAF for PrEP among potential and actual PrEP users,” she added.

Dr. Blackstock described her approach to shared decision-making regarding TDF/FTC versus TAF/FTC, and to helping patients understand the relative benefits and risks of each formulation.

In January of 2020, Dr. Blackstock, who was then assistant commissioner of the HIV bureau of the New York City Department of Health and Mental Hygiene, issued with other Bureau members a “Dear colleague” letter stating why they believed that TDF/FTC should remain the first-line regimen for PrEP.

That opinion, she said, was bolstered by an editorial published in February 2020 by Douglas E. Krakower, MD, from Beth Israel Deaconess Medical Center in Boston, and colleagues, which questioned the rush to shift from TDF to TAF in HIV treatment, and cautioned against the same approach to PrEP.

“Despite evidence that TAF/FTC would not be cost-effective, compared with generic TDF/FTC , the newer regimen quickly and irrevocably displaced TDF/FTC for HIV treatment in the U.S. A similar shift for PrEP – especially for populations in which TAF/FTC is untested – would be premature, costly, and counterproductive for population impact,” Krakower et al. wrote.
 

Shared decision-making

Clinicians can help patients who may be a candidate for either PrEP regimen by engaging them in shared decision-making.

“The clinician provides information in this case about a prevention strategy, options, benefits and risks, alternatives, and the patient provides their preferences and values, and together the clinician and patient make a decision,” Dr. Blackstock said.

The process differs from the model of informed decision-making, where the clinician gives the patient the information and the patient comes to a decision, or the old, “paternalistic” model in which the clinician gives information and makes recommendations to the patient.

“Shared decision-making has been studied extensively and has been shown to improve patient satisfaction, patient communication, and also potentially reducing health inequities that we see,” she said.

The model for shared decision-making for clinical practice includes three distinct portions: a choice talk, option talk, and decision talk.
 

Choice

To begin the discussion, the physician informs the patients of the availability of choices and justifies them, saying, for example, “there is good information about how these two PrEP options differ that I’d like to discuss with you,” and “the two PrEP options have different side effects … some will matter more to you than other people.”

At this stage the clinician should defer closure by offering a more detailed discussion of the choices.
 

Option

Here the clinician solicits information about what the patient has heard or read about PrEP, describes each option in practical terms, and points out where the two regimens differ, being specific about the pros and cons of each (for example, potential bone mineral density loss or renal complications with TDF, and potential weight gain with subsequent metabolic and cardiovascular consequences with TAF).

The TDF versus TAF-based PrEP discussion could also focus on what’s known about the comparative effectiveness of each regimen.

For example, TDF/FTC has been shown to be about 99% effective at preventing infection in men who have sex with men and in transgender women, also about 99% effective in heterosexual women and men, and 74%-84% effective in persons who inject drugs.

In contrast, TAF/FTC has been shown to be about 99% effective in men who have sex with men and transgender women, but it’s efficacy in the other two categories is unknown, Dr. Blackstock said.

The option discussion should include a comparison of the evidence base for each regimen, including the real-world experience with TDF/FTC since 2012, and much more limited experience with TAF/FTC.

Discussing relative costs, although the wholesale costs of the regimens are similar, there is now a generic version of TDF/FTC made by Teva Pharmaceuticals that sells for about $400 less per month than the brand name, which might make the option more acceptable to health insurers.
 

Decision

The decision talk is about considering the patients preferences and deciding with them what is best.

The clinician could say, for example: “What, from your point of view, matters most to you?”

The clinician should also be willing to allow the patient to defer a decision or to guide them depending on their stated wish, asking something like: “Are you ready to decide, or do you want more time? Do you have more questions? Are there more things we should discuss?

Offering the patient a chance to review the decision can also be a good way to arrive at closure, Dr. Blackstock said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Blackstock presented her talk, said that he also uses a similar approach to the PrEP discussion.

“I use a very patient-centered approach of providing information and talking through the data that are available,” he said.

“I will say that, as patients come to me talking about the transition from TDF to TAF for pre-exposure prophylaxis, I am very clear with them about the limited benefit or no benefit that I see with TAF for pre-exposure prophylaxis, and all of my patients have remained on TDF for pre-exposure prophylaxis,” he added.

No funding source for the presentation was reported. Dr. Blackstock and Dr. Goldstein reported having no conflicts of interest to disclose.

A patient-centered approach can help guide persons at risk for HIV exposure to decide on the best choice of pre-exposure prophylaxis (PrEP) regimens for them, stifling the noise generated by direct-to-consumer advertising, an infectious disease specialist recommends.

The decision for patients whether to start or remain on the PrEP combination of tenofovir disoproxil fumarate (TDF) plus emtricitabine (FTC; Truvada and generic) or on tenofovir alafenamide (TAF) plus FTC (Descovy) is made more fraught by confusion regarding the use of the newer and allegedly safer TAF prodrug of tenofovir in HIV treatment regimens, said Oni Blackstock, MD, founder and executive director of Health Justice and an attending physician in the division of infectious diseases at Harlem Hospital, New York.

“There have been commercials on TV as well as on social media around class-action lawsuits against [Truvada maker] Gilead,” she said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases, held virtually this year.

“These lawsuits focus on TDF for HIV treatment, but they have sown a great deal of confusion about TDF versus TAF for PrEP among potential and actual PrEP users,” she added.

Dr. Blackstock described her approach to shared decision-making regarding TDF/FTC versus TAF/FTC, and to helping patients understand the relative benefits and risks of each formulation.

In January of 2020, Dr. Blackstock, who was then assistant commissioner of the HIV bureau of the New York City Department of Health and Mental Hygiene, issued with other Bureau members a “Dear colleague” letter stating why they believed that TDF/FTC should remain the first-line regimen for PrEP.

That opinion, she said, was bolstered by an editorial published in February 2020 by Douglas E. Krakower, MD, from Beth Israel Deaconess Medical Center in Boston, and colleagues, which questioned the rush to shift from TDF to TAF in HIV treatment, and cautioned against the same approach to PrEP.

“Despite evidence that TAF/FTC would not be cost-effective, compared with generic TDF/FTC , the newer regimen quickly and irrevocably displaced TDF/FTC for HIV treatment in the U.S. A similar shift for PrEP – especially for populations in which TAF/FTC is untested – would be premature, costly, and counterproductive for population impact,” Krakower et al. wrote.
 

Shared decision-making

Clinicians can help patients who may be a candidate for either PrEP regimen by engaging them in shared decision-making.

“The clinician provides information in this case about a prevention strategy, options, benefits and risks, alternatives, and the patient provides their preferences and values, and together the clinician and patient make a decision,” Dr. Blackstock said.

The process differs from the model of informed decision-making, where the clinician gives the patient the information and the patient comes to a decision, or the old, “paternalistic” model in which the clinician gives information and makes recommendations to the patient.

“Shared decision-making has been studied extensively and has been shown to improve patient satisfaction, patient communication, and also potentially reducing health inequities that we see,” she said.

The model for shared decision-making for clinical practice includes three distinct portions: a choice talk, option talk, and decision talk.
 

Choice

To begin the discussion, the physician informs the patients of the availability of choices and justifies them, saying, for example, “there is good information about how these two PrEP options differ that I’d like to discuss with you,” and “the two PrEP options have different side effects … some will matter more to you than other people.”

At this stage the clinician should defer closure by offering a more detailed discussion of the choices.
 

Option

Here the clinician solicits information about what the patient has heard or read about PrEP, describes each option in practical terms, and points out where the two regimens differ, being specific about the pros and cons of each (for example, potential bone mineral density loss or renal complications with TDF, and potential weight gain with subsequent metabolic and cardiovascular consequences with TAF).

The TDF versus TAF-based PrEP discussion could also focus on what’s known about the comparative effectiveness of each regimen.

For example, TDF/FTC has been shown to be about 99% effective at preventing infection in men who have sex with men and in transgender women, also about 99% effective in heterosexual women and men, and 74%-84% effective in persons who inject drugs.

In contrast, TAF/FTC has been shown to be about 99% effective in men who have sex with men and transgender women, but it’s efficacy in the other two categories is unknown, Dr. Blackstock said.

The option discussion should include a comparison of the evidence base for each regimen, including the real-world experience with TDF/FTC since 2012, and much more limited experience with TAF/FTC.

Discussing relative costs, although the wholesale costs of the regimens are similar, there is now a generic version of TDF/FTC made by Teva Pharmaceuticals that sells for about $400 less per month than the brand name, which might make the option more acceptable to health insurers.
 

Decision

The decision talk is about considering the patients preferences and deciding with them what is best.

The clinician could say, for example: “What, from your point of view, matters most to you?”

The clinician should also be willing to allow the patient to defer a decision or to guide them depending on their stated wish, asking something like: “Are you ready to decide, or do you want more time? Do you have more questions? Are there more things we should discuss?

Offering the patient a chance to review the decision can also be a good way to arrive at closure, Dr. Blackstock said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Blackstock presented her talk, said that he also uses a similar approach to the PrEP discussion.

“I use a very patient-centered approach of providing information and talking through the data that are available,” he said.

“I will say that, as patients come to me talking about the transition from TDF to TAF for pre-exposure prophylaxis, I am very clear with them about the limited benefit or no benefit that I see with TAF for pre-exposure prophylaxis, and all of my patients have remained on TDF for pre-exposure prophylaxis,” he added.

No funding source for the presentation was reported. Dr. Blackstock and Dr. Goldstein reported having no conflicts of interest to disclose.

A patient-centered approach can help guide persons at risk for HIV exposure to decide on the best choice of pre-exposure prophylaxis (PrEP) regimens for them, stifling the noise generated by direct-to-consumer advertising, an infectious disease specialist recommends.

The decision for patients whether to start or remain on the PrEP combination of tenofovir disoproxil fumarate (TDF) plus emtricitabine (FTC; Truvada and generic) or on tenofovir alafenamide (TAF) plus FTC (Descovy) is made more fraught by confusion regarding the use of the newer and allegedly safer TAF prodrug of tenofovir in HIV treatment regimens, said Oni Blackstock, MD, founder and executive director of Health Justice and an attending physician in the division of infectious diseases at Harlem Hospital, New York.

“There have been commercials on TV as well as on social media around class-action lawsuits against [Truvada maker] Gilead,” she said in an online presentation during IDWeek 2020, an annual scientific meeting on infectious diseases, held virtually this year.

“These lawsuits focus on TDF for HIV treatment, but they have sown a great deal of confusion about TDF versus TAF for PrEP among potential and actual PrEP users,” she added.

Dr. Blackstock described her approach to shared decision-making regarding TDF/FTC versus TAF/FTC, and to helping patients understand the relative benefits and risks of each formulation.

In January of 2020, Dr. Blackstock, who was then assistant commissioner of the HIV bureau of the New York City Department of Health and Mental Hygiene, issued with other Bureau members a “Dear colleague” letter stating why they believed that TDF/FTC should remain the first-line regimen for PrEP.

That opinion, she said, was bolstered by an editorial published in February 2020 by Douglas E. Krakower, MD, from Beth Israel Deaconess Medical Center in Boston, and colleagues, which questioned the rush to shift from TDF to TAF in HIV treatment, and cautioned against the same approach to PrEP.

“Despite evidence that TAF/FTC would not be cost-effective, compared with generic TDF/FTC , the newer regimen quickly and irrevocably displaced TDF/FTC for HIV treatment in the U.S. A similar shift for PrEP – especially for populations in which TAF/FTC is untested – would be premature, costly, and counterproductive for population impact,” Krakower et al. wrote.
 

Shared decision-making

Clinicians can help patients who may be a candidate for either PrEP regimen by engaging them in shared decision-making.

“The clinician provides information in this case about a prevention strategy, options, benefits and risks, alternatives, and the patient provides their preferences and values, and together the clinician and patient make a decision,” Dr. Blackstock said.

The process differs from the model of informed decision-making, where the clinician gives the patient the information and the patient comes to a decision, or the old, “paternalistic” model in which the clinician gives information and makes recommendations to the patient.

“Shared decision-making has been studied extensively and has been shown to improve patient satisfaction, patient communication, and also potentially reducing health inequities that we see,” she said.

The model for shared decision-making for clinical practice includes three distinct portions: a choice talk, option talk, and decision talk.
 

Choice

To begin the discussion, the physician informs the patients of the availability of choices and justifies them, saying, for example, “there is good information about how these two PrEP options differ that I’d like to discuss with you,” and “the two PrEP options have different side effects … some will matter more to you than other people.”

At this stage the clinician should defer closure by offering a more detailed discussion of the choices.
 

Option

Here the clinician solicits information about what the patient has heard or read about PrEP, describes each option in practical terms, and points out where the two regimens differ, being specific about the pros and cons of each (for example, potential bone mineral density loss or renal complications with TDF, and potential weight gain with subsequent metabolic and cardiovascular consequences with TAF).

The TDF versus TAF-based PrEP discussion could also focus on what’s known about the comparative effectiveness of each regimen.

For example, TDF/FTC has been shown to be about 99% effective at preventing infection in men who have sex with men and in transgender women, also about 99% effective in heterosexual women and men, and 74%-84% effective in persons who inject drugs.

In contrast, TAF/FTC has been shown to be about 99% effective in men who have sex with men and transgender women, but it’s efficacy in the other two categories is unknown, Dr. Blackstock said.

The option discussion should include a comparison of the evidence base for each regimen, including the real-world experience with TDF/FTC since 2012, and much more limited experience with TAF/FTC.

Discussing relative costs, although the wholesale costs of the regimens are similar, there is now a generic version of TDF/FTC made by Teva Pharmaceuticals that sells for about $400 less per month than the brand name, which might make the option more acceptable to health insurers.
 

Decision

The decision talk is about considering the patients preferences and deciding with them what is best.

The clinician could say, for example: “What, from your point of view, matters most to you?”

The clinician should also be willing to allow the patient to defer a decision or to guide them depending on their stated wish, asking something like: “Are you ready to decide, or do you want more time? Do you have more questions? Are there more things we should discuss?

Offering the patient a chance to review the decision can also be a good way to arrive at closure, Dr. Blackstock said.

Robert Goldstein, MD, PhD, an infectious disease specialist and medical director of the transgender health program at Massachusetts General Hospital in Boston, who comoderated the session where Dr. Blackstock presented her talk, said that he also uses a similar approach to the PrEP discussion.

“I use a very patient-centered approach of providing information and talking through the data that are available,” he said.

“I will say that, as patients come to me talking about the transition from TDF to TAF for pre-exposure prophylaxis, I am very clear with them about the limited benefit or no benefit that I see with TAF for pre-exposure prophylaxis, and all of my patients have remained on TDF for pre-exposure prophylaxis,” he added.

No funding source for the presentation was reported. Dr. Blackstock and Dr. Goldstein reported having no conflicts of interest to disclose.