Hepatitis

Findings from a meta-analysis of 65 studies conducted in 35 countries indicate that nearly a third of men older than 15 years are infected with human papillomavirus (HPV), and one in five are carriers of high-risk HPV (HR-HPV). These estimates provide further weight to arguments in favor of vaccinating boys against HPV to prevent certain types of cancer.

“Our results support that sexually active men, regardless of age, are an important reservoir of HPV genital infection,” wrote the authors in The Lancet Global Health . “These estimates emphasize the importance of incorporating men into comprehensive HPV prevention strategies to reduce HPV-related morbidity and mortality in men and ultimately achieve elimination of cervical cancer and other HPV-related diseases.”
 

Literature review

HPV infection is the most common sexually transmitted viral infection worldwide. More than 200 HPV types can be transmitted sexually, and at least 12 types are oncogenic. Previous studies have shown that most sexually active men and women acquire at least one genital HPV infection during their lifetime.

Although most HPV infections are asymptomatic, they can lead to cancer. Indeed, HPV is involved in the development of cervical, vulval, and vaginal cancers, as well as oropharyngeal and anal cancers, which also affect the male population. More than 25% of cancers caused by HPV occur in men.

Despite these observations, fewer epidemiologic studies have assessed HPV infection in men than in women. To determine the prevalence of HPV infection in the male population, Laia Bruni, MD, MPH, PhD, an epidemiologist at the Catalan Institute of Oncology in Barcelona, and her colleagues collated data from 65 studies conducted in 35 countries pertaining to males older than 15 years.

In this literature review, the researchers selected studies that reported infection rates in males without HPV-related symptoms. Studies conducted exclusively in populations that were considered at increased risk for sexually transmitted infections (STIs) were excluded. Overall, the analysis included close to 45,000 men.
 

Prevalent HPV genotype

Testing for HPV was conducted on samples collected from the anus and genitals. The results show a global pooled prevalence of HPV infection in males older than 15 years of 31% for any HPV and 21% for HR-HPV. One of these viruses, HPV-16, was the most prevalent HPV genotype (5% prevalence).

HPV prevalence was highest among young adults. It stabilized and decreased from age 50 years. Between ages 25 and 29 years, 35% of men are infected with HPV. It should be noted that prevalence is already high in the youngest group, reaching 28% in males between the ages of 15 and 19 years. The variations are similar for HR-HPV infections.

This age-related change is different from rates in women. Among the female population, HPV prevalence peaks soon after first sexual activity and declines with age, with a slight rebound after ages 50–55 years (i.e., often after or around the time of menopause), wrote the researchers.

The results also show country- and region-based disparities. The pooled prevalence for any HPV was highest in Sub-Saharan Africa (37%), followed by Europe and Northern America (36%). The lowest prevalence was in East and Southeast Asia (15%). Here again, the trends are similar with high-risk HPV.
 

Preventive measures

“Our study draws attention to the high prevalence, ranging from 20% to 30% for HR-HPV in men across most regions, and the need for strengthening HPV prevention within overall STI control efforts,” wrote the authors.

“Future epidemiological studies are needed to monitor trends in prevalence in men, especially considering the roll-out of HPV vaccination in girls and young women and that many countries are beginning to vaccinate boys.”

In France, the HPV vaccination program was extended in 2021 to include all boys between the ages of 11 and 14 years (two-dose schedule), with a catch-up course in males up to age 19 years (three-dose schedule). This is the same vaccine program as for girls. It is also recommended for men up to age 26 years who have sex with other men.

The 2023 return to school will see the launch of a general vaccination campaign aimed at seventh-grade students, both boys and girls, with parental consent, to increase vaccine coverage. In 2021, vaccine uptake was 43.6% in girls between the ages of 15 and 18 years and scarcely 6% in boys, according to Public Health France.

Two vaccines are in use: the bivalent Cervarix vaccine, which is effective against HPV-16 and HPV-18, and the nonavalent Gardasil 9, which is effective against types 16, 18, 31, 33, 45, 52, and 58. Both provide protection against HPV-16, the type most common in men, which is responsible for more than half of cases of cervical cancer.

This article was translated from the Medscape French Edition. A version appeared on Medscape.com.

Findings from a meta-analysis of 65 studies conducted in 35 countries indicate that nearly a third of men older than 15 years are infected with human papillomavirus (HPV), and one in five are carriers of high-risk HPV (HR-HPV). These estimates provide further weight to arguments in favor of vaccinating boys against HPV to prevent certain types of cancer.

“Our results support that sexually active men, regardless of age, are an important reservoir of HPV genital infection,” wrote the authors in The Lancet Global Health . “These estimates emphasize the importance of incorporating men into comprehensive HPV prevention strategies to reduce HPV-related morbidity and mortality in men and ultimately achieve elimination of cervical cancer and other HPV-related diseases.”
 

Literature review

HPV infection is the most common sexually transmitted viral infection worldwide. More than 200 HPV types can be transmitted sexually, and at least 12 types are oncogenic. Previous studies have shown that most sexually active men and women acquire at least one genital HPV infection during their lifetime.

Although most HPV infections are asymptomatic, they can lead to cancer. Indeed, HPV is involved in the development of cervical, vulval, and vaginal cancers, as well as oropharyngeal and anal cancers, which also affect the male population. More than 25% of cancers caused by HPV occur in men.

Despite these observations, fewer epidemiologic studies have assessed HPV infection in men than in women. To determine the prevalence of HPV infection in the male population, Laia Bruni, MD, MPH, PhD, an epidemiologist at the Catalan Institute of Oncology in Barcelona, and her colleagues collated data from 65 studies conducted in 35 countries pertaining to males older than 15 years.

In this literature review, the researchers selected studies that reported infection rates in males without HPV-related symptoms. Studies conducted exclusively in populations that were considered at increased risk for sexually transmitted infections (STIs) were excluded. Overall, the analysis included close to 45,000 men.
 

Prevalent HPV genotype

Testing for HPV was conducted on samples collected from the anus and genitals. The results show a global pooled prevalence of HPV infection in males older than 15 years of 31% for any HPV and 21% for HR-HPV. One of these viruses, HPV-16, was the most prevalent HPV genotype (5% prevalence).

HPV prevalence was highest among young adults. It stabilized and decreased from age 50 years. Between ages 25 and 29 years, 35% of men are infected with HPV. It should be noted that prevalence is already high in the youngest group, reaching 28% in males between the ages of 15 and 19 years. The variations are similar for HR-HPV infections.

This age-related change is different from rates in women. Among the female population, HPV prevalence peaks soon after first sexual activity and declines with age, with a slight rebound after ages 50–55 years (i.e., often after or around the time of menopause), wrote the researchers.

The results also show country- and region-based disparities. The pooled prevalence for any HPV was highest in Sub-Saharan Africa (37%), followed by Europe and Northern America (36%). The lowest prevalence was in East and Southeast Asia (15%). Here again, the trends are similar with high-risk HPV.
 

Preventive measures

“Our study draws attention to the high prevalence, ranging from 20% to 30% for HR-HPV in men across most regions, and the need for strengthening HPV prevention within overall STI control efforts,” wrote the authors.

“Future epidemiological studies are needed to monitor trends in prevalence in men, especially considering the roll-out of HPV vaccination in girls and young women and that many countries are beginning to vaccinate boys.”

In France, the HPV vaccination program was extended in 2021 to include all boys between the ages of 11 and 14 years (two-dose schedule), with a catch-up course in males up to age 19 years (three-dose schedule). This is the same vaccine program as for girls. It is also recommended for men up to age 26 years who have sex with other men.

The 2023 return to school will see the launch of a general vaccination campaign aimed at seventh-grade students, both boys and girls, with parental consent, to increase vaccine coverage. In 2021, vaccine uptake was 43.6% in girls between the ages of 15 and 18 years and scarcely 6% in boys, according to Public Health France.

Two vaccines are in use: the bivalent Cervarix vaccine, which is effective against HPV-16 and HPV-18, and the nonavalent Gardasil 9, which is effective against types 16, 18, 31, 33, 45, 52, and 58. Both provide protection against HPV-16, the type most common in men, which is responsible for more than half of cases of cervical cancer.

This article was translated from the Medscape French Edition. A version appeared on Medscape.com.

Findings from a meta-analysis of 65 studies conducted in 35 countries indicate that nearly a third of men older than 15 years are infected with human papillomavirus (HPV), and one in five are carriers of high-risk HPV (HR-HPV). These estimates provide further weight to arguments in favor of vaccinating boys against HPV to prevent certain types of cancer.

“Our results support that sexually active men, regardless of age, are an important reservoir of HPV genital infection,” wrote the authors in The Lancet Global Health . “These estimates emphasize the importance of incorporating men into comprehensive HPV prevention strategies to reduce HPV-related morbidity and mortality in men and ultimately achieve elimination of cervical cancer and other HPV-related diseases.”
 

Literature review

HPV infection is the most common sexually transmitted viral infection worldwide. More than 200 HPV types can be transmitted sexually, and at least 12 types are oncogenic. Previous studies have shown that most sexually active men and women acquire at least one genital HPV infection during their lifetime.

Although most HPV infections are asymptomatic, they can lead to cancer. Indeed, HPV is involved in the development of cervical, vulval, and vaginal cancers, as well as oropharyngeal and anal cancers, which also affect the male population. More than 25% of cancers caused by HPV occur in men.

Despite these observations, fewer epidemiologic studies have assessed HPV infection in men than in women. To determine the prevalence of HPV infection in the male population, Laia Bruni, MD, MPH, PhD, an epidemiologist at the Catalan Institute of Oncology in Barcelona, and her colleagues collated data from 65 studies conducted in 35 countries pertaining to males older than 15 years.

In this literature review, the researchers selected studies that reported infection rates in males without HPV-related symptoms. Studies conducted exclusively in populations that were considered at increased risk for sexually transmitted infections (STIs) were excluded. Overall, the analysis included close to 45,000 men.
 

Prevalent HPV genotype

Testing for HPV was conducted on samples collected from the anus and genitals. The results show a global pooled prevalence of HPV infection in males older than 15 years of 31% for any HPV and 21% for HR-HPV. One of these viruses, HPV-16, was the most prevalent HPV genotype (5% prevalence).

HPV prevalence was highest among young adults. It stabilized and decreased from age 50 years. Between ages 25 and 29 years, 35% of men are infected with HPV. It should be noted that prevalence is already high in the youngest group, reaching 28% in males between the ages of 15 and 19 years. The variations are similar for HR-HPV infections.

This age-related change is different from rates in women. Among the female population, HPV prevalence peaks soon after first sexual activity and declines with age, with a slight rebound after ages 50–55 years (i.e., often after or around the time of menopause), wrote the researchers.

The results also show country- and region-based disparities. The pooled prevalence for any HPV was highest in Sub-Saharan Africa (37%), followed by Europe and Northern America (36%). The lowest prevalence was in East and Southeast Asia (15%). Here again, the trends are similar with high-risk HPV.
 

Preventive measures

“Our study draws attention to the high prevalence, ranging from 20% to 30% for HR-HPV in men across most regions, and the need for strengthening HPV prevention within overall STI control efforts,” wrote the authors.

“Future epidemiological studies are needed to monitor trends in prevalence in men, especially considering the roll-out of HPV vaccination in girls and young women and that many countries are beginning to vaccinate boys.”

In France, the HPV vaccination program was extended in 2021 to include all boys between the ages of 11 and 14 years (two-dose schedule), with a catch-up course in males up to age 19 years (three-dose schedule). This is the same vaccine program as for girls. It is also recommended for men up to age 26 years who have sex with other men.

The 2023 return to school will see the launch of a general vaccination campaign aimed at seventh-grade students, both boys and girls, with parental consent, to increase vaccine coverage. In 2021, vaccine uptake was 43.6% in girls between the ages of 15 and 18 years and scarcely 6% in boys, according to Public Health France.

Two vaccines are in use: the bivalent Cervarix vaccine, which is effective against HPV-16 and HPV-18, and the nonavalent Gardasil 9, which is effective against types 16, 18, 31, 33, 45, 52, and 58. Both provide protection against HPV-16, the type most common in men, which is responsible for more than half of cases of cervical cancer.

This article was translated from the Medscape French Edition. A version appeared on Medscape.com.

Aggressive marketing of OxyContin in the mid-1990s not only fueled the opioid crisis but also the spread of infectious diseases associated with injection drug use, a new analysis shows.

The uptick in rates of infectious diseases, namely, hepatitis and infective endocarditis, occurred after 2010, when OxyContin maker Purdue Pharma reformulated OxyContin to make it harder to crush and snort. This led many people who were already addicted to the powerful pain pills to move on to injecting heroin or fentanyl, which fueled the spread of infectious disease.

“Our results suggest that the mortality and morbidity consequences of OxyContin marketing continue to be salient more than 25 years later,” write Julia Dennett, PhD, and Gregg Gonsalves, PhD, with Yale University School of Public Health, New Haven, Conn.

Their study was published online in Health Affairs.
 

Long-term effects revealed

Until now, the long-term effects of widespread OxyContin marketing with regard to complications of injection drug use were unknown.

Dr. Dennett and Dr. Gonsalves evaluated the effects of OxyContin marketing on the long-term trajectories of various injection drug use–related outcomes. Using a difference-in-difference analysis, they compared states with high vs. low exposure to OxyContin marketing before and after the 2010 reformulation of the drug.

Before 2010, rates of infections associated with injection drug use and overdose deaths were similar in high- and low-marketing states, they found.

Those rates diverged after the 2010 reformulation, with more infections related to injection drug use in states exposed to more marketing.

Specifically, from 2010 until 2020, high-exposure states saw, on average, an additional 0.85 acute hepatitis B cases, 0.83 hepatitis C cases, and 0.62 cases of death from infective endocarditis per 100,000 residents.

High-exposure states also had 5.3 more deaths per 100,000 residents from synthetic opioid overdose.

“Prior to 2010, among these states, there were generally no statistically significant differences in these outcomes. After 2010, you saw them diverge dramatically,” Dr. Dennett said in a news release.

Dr. Dennett and Dr. Gonsalves say their findings support the view that the opioid epidemic is creating a converging public health crisis, as it is fueling a surge in infectious diseases, particularly hepatitis, infective endocarditis, and HIV.

“This study highlights a critical need for actions to address the spread of viral and bacterial infections and overdose associated with injection drug use, both in the states that were subject to Purdue’s promotional campaign and across the U.S. more broadly,” they add.

Purdue Pharma did not provide a comment on the study.

Funding for the study was provided by the National Institute on Drug Abuse. Disclosures for Dr. Dennett and Dr. Gonsalves were not available.

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

Aggressive marketing of OxyContin in the mid-1990s not only fueled the opioid crisis but also the spread of infectious diseases associated with injection drug use, a new analysis shows.

The uptick in rates of infectious diseases, namely, hepatitis and infective endocarditis, occurred after 2010, when OxyContin maker Purdue Pharma reformulated OxyContin to make it harder to crush and snort. This led many people who were already addicted to the powerful pain pills to move on to injecting heroin or fentanyl, which fueled the spread of infectious disease.

“Our results suggest that the mortality and morbidity consequences of OxyContin marketing continue to be salient more than 25 years later,” write Julia Dennett, PhD, and Gregg Gonsalves, PhD, with Yale University School of Public Health, New Haven, Conn.

Their study was published online in Health Affairs.
 

Long-term effects revealed

Until now, the long-term effects of widespread OxyContin marketing with regard to complications of injection drug use were unknown.

Dr. Dennett and Dr. Gonsalves evaluated the effects of OxyContin marketing on the long-term trajectories of various injection drug use–related outcomes. Using a difference-in-difference analysis, they compared states with high vs. low exposure to OxyContin marketing before and after the 2010 reformulation of the drug.

Before 2010, rates of infections associated with injection drug use and overdose deaths were similar in high- and low-marketing states, they found.

Those rates diverged after the 2010 reformulation, with more infections related to injection drug use in states exposed to more marketing.

Specifically, from 2010 until 2020, high-exposure states saw, on average, an additional 0.85 acute hepatitis B cases, 0.83 hepatitis C cases, and 0.62 cases of death from infective endocarditis per 100,000 residents.

High-exposure states also had 5.3 more deaths per 100,000 residents from synthetic opioid overdose.

“Prior to 2010, among these states, there were generally no statistically significant differences in these outcomes. After 2010, you saw them diverge dramatically,” Dr. Dennett said in a news release.

Dr. Dennett and Dr. Gonsalves say their findings support the view that the opioid epidemic is creating a converging public health crisis, as it is fueling a surge in infectious diseases, particularly hepatitis, infective endocarditis, and HIV.

“This study highlights a critical need for actions to address the spread of viral and bacterial infections and overdose associated with injection drug use, both in the states that were subject to Purdue’s promotional campaign and across the U.S. more broadly,” they add.

Purdue Pharma did not provide a comment on the study.

Funding for the study was provided by the National Institute on Drug Abuse. Disclosures for Dr. Dennett and Dr. Gonsalves were not available.

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

Aggressive marketing of OxyContin in the mid-1990s not only fueled the opioid crisis but also the spread of infectious diseases associated with injection drug use, a new analysis shows.

The uptick in rates of infectious diseases, namely, hepatitis and infective endocarditis, occurred after 2010, when OxyContin maker Purdue Pharma reformulated OxyContin to make it harder to crush and snort. This led many people who were already addicted to the powerful pain pills to move on to injecting heroin or fentanyl, which fueled the spread of infectious disease.

“Our results suggest that the mortality and morbidity consequences of OxyContin marketing continue to be salient more than 25 years later,” write Julia Dennett, PhD, and Gregg Gonsalves, PhD, with Yale University School of Public Health, New Haven, Conn.

Their study was published online in Health Affairs.
 

Long-term effects revealed

Until now, the long-term effects of widespread OxyContin marketing with regard to complications of injection drug use were unknown.

Dr. Dennett and Dr. Gonsalves evaluated the effects of OxyContin marketing on the long-term trajectories of various injection drug use–related outcomes. Using a difference-in-difference analysis, they compared states with high vs. low exposure to OxyContin marketing before and after the 2010 reformulation of the drug.

Before 2010, rates of infections associated with injection drug use and overdose deaths were similar in high- and low-marketing states, they found.

Those rates diverged after the 2010 reformulation, with more infections related to injection drug use in states exposed to more marketing.

Specifically, from 2010 until 2020, high-exposure states saw, on average, an additional 0.85 acute hepatitis B cases, 0.83 hepatitis C cases, and 0.62 cases of death from infective endocarditis per 100,000 residents.

High-exposure states also had 5.3 more deaths per 100,000 residents from synthetic opioid overdose.

“Prior to 2010, among these states, there were generally no statistically significant differences in these outcomes. After 2010, you saw them diverge dramatically,” Dr. Dennett said in a news release.

Dr. Dennett and Dr. Gonsalves say their findings support the view that the opioid epidemic is creating a converging public health crisis, as it is fueling a surge in infectious diseases, particularly hepatitis, infective endocarditis, and HIV.

“This study highlights a critical need for actions to address the spread of viral and bacterial infections and overdose associated with injection drug use, both in the states that were subject to Purdue’s promotional campaign and across the U.S. more broadly,” they add.

Purdue Pharma did not provide a comment on the study.

Funding for the study was provided by the National Institute on Drug Abuse. Disclosures for Dr. Dennett and Dr. Gonsalves were not available.

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

In the decade since safe, curative oral treatments were approved for treating hepatitis C virus (HCV) infections, only one in three U.S. patients diagnosed with the disease have been cleared of it, according to new data from the Centers for Disease Control and Prevention.

The findings indicate that current progress falls far short of the goal of the Viral Hepatitis National Strategic Plan for the United States, which calls for eliminating HCV for at least 80% of patients with the virus by 2030.

Lead author Carolyn Wester, MD, with the CDC’s Division of Viral Hepatitis, called the low numbers “stunning” and said that the researchers found that patients face barriers to being cured at every step of the way, from being diagnosed to accessing breakthrough direct-acting antiviral (DAA) agents.

The article was published online in the CDC’s Morbidity and Mortality Weekly Report.
 

Outcomes vary by age and insurance

Using longitudinal data from Quest Diagnostics laboratories, the researchers identified 1.7 million people who had a history of HCV infection from Jan. 1, 2013, to Dec. 31, 2022.

Of those patients, 1.5 million (88%) were categorized as having undergone viral testing.

Among those who underwent such testing, 1 million (69%) were categorized as having an initial infection. Just 356,807 patients with initial infection (34%) were cured or cleared of HCV. Of those found to be cured or cleared, 23,518 (7%) were found to have persistent infection or reinfection.

Viral clearance varied greatly by insurance. While 45% of the people covered under Medicare experienced viral clearance, only 23% of the uninsured and 31% of those on Medicaid did so.

Age also played a role in viral clearance. It was highest (42%) among those aged 60 and older. Clearance was lowest (24%) among patients in the 20-39 age group, the group most likely to be newly infected in light of the surge in HCV cases because of the opioid epidemic, Dr. Wester said. Persistent infection or reinfection was also highest in the 20-39 age group.

With respect to age and insurance type combined, the highest HCV clearance rate (49%) was for patients aged 60 and older who had commercial insurance; the lowest (16%) was for uninsured patients in the 20-39 age group.

The investigators evaluated people who had been diagnosed with HCV, Dr. Wester said. “It’s estimated about 40% of people in the U.S. are unaware of their infection.” Because of this, the numbers reported in the study may vastly underestimate the true picture, she told this news organization.
 

Barriers to treatment ‘insurmountable’ without major transformation

Increased access to diagnosis, treatment, and prevention services for persons with or at risk for acquiring hepatitis C needs to be addressed to prevent progression of disease and ongoing transmission and to achieve national hepatitis C elimination goals, the authors wrote.

The biggest barriers to improving HCV clearance are the high cost of treatment, widely varying insurance coverage, insurer restrictions, and challenges in diagnosing the disease, Dr. Wester added.

Overcoming these barriers requires implementation of universal HCV screening recommendations, including HCV RNA testing for all persons with reactive HCV antibody results, provision of treatment for all persons regardless of payer, and prevention services for persons at risk for acquiring new HCV infection, the authors concluded.

“The current barriers are insurmountable without a major transformation in our nation’s response,” Dr. Wester noted.

She expressed her support of the National Hepatitis C Elimination Program, offered as part of the Biden Administration’s 2024 budget proposal. She said that the initiative “is what we need to prevent the needless suffering from hepatitis C and to potentially save not only tens of thousands of lives but tens of billions of health care dollars.”

The three-part proposal includes a national subscription model to purchase DAA agents for those most underserved: Medicaid beneficiaries, incarcerated people, the uninsured, and American Indian and Alaska Native individuals treated through the Indian Health Service.

Under this model, the federal government would negotiate with manufacturers to buy as much treatment as needed for all individuals in the underserved groups.
 

What can physicians do?

Physicians can help improve HCV treatment and outcomes by being aware of the current testing guidelines, Dr. Wester said.

Guidelines now call for hepatitis C screening at least once in a lifetime for all adults, except in settings where the prevalence of HCV infection is less than 0.1%. They also call for screening during each pregnancy, with the same regional-prevalence exception.

Recommendations include curative treatment “for nearly everybody who is living with hepatitis C,” Dr. Wester added.

These CDC guidelines came out in April 2020, a time when the medical focus shifted to COVID-19, and that may have hurt awareness, she noted.

Physicians can also help by fighting back against non–evidence-based reasons insurance companies give for restricting coverage, Dr. Wester said.

Those restrictions include requiring specialists to prescribe DAA agents instead of allowing primary care physicians to do so, as well as requiring patients to have advanced liver disease or requiring patients to demonstrate sobriety or prove they are receiving counseling prior to their being eligible for treatment, Dr. Wester said.
 

Prior authorization a problem

Stacey B. Trooskin MD, PhD, MPH, assistant professor of medicine at the University of Pennsylvania in Philadelphia, told this news organization that prior authorization has been a major barrier for obtaining medications. Prior authorization requirements differ by state.

The paperwork must be submitted by already-stretched physician offices, and appeals are common. In that time, the window for keeping patients with HCV in the health care system may be lost, said Dr. Trooskin, chief medical adviser to the National Viral Hepatitis Roundtable.

“We know that about half of all Medicaid programs have removed prior authorization for most patients entirely,” she said, “but there are still half that require prior authorization.”

Action at the federal level is also needed, Dr. Trooskin said.

The countries that are successfully eliminating HCV and have successfully deployed the lifesaving medications provide governmental support for meeting patients where they are, she added.

Support can include inpatient and outpatient substance use disorder treatment programs or support in mental health settings, she noted.

“It’s not enough to want patients to come into their primary care provider and for that primary care provider to screen them,” Dr. Trooskin said. “This is about creating health care infrastructure so that we are finding patients at greatest risk for hepatitis C and integrating hepatitis C treatment into the services they are already accessing.”

Coauthor Harvey W. Kaufman, MD, is an employee of and owns stock in Quest Diagnostics. Coauthor William A. Meyer III, PhD, is a consultant to Quest Diagnostics. No other potential conflicts of interest were disclosed. Dr. Trooskin oversees C-Change, a hepatitis C elimination program, which receives funding from Gilead Sciences.

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

In the decade since safe, curative oral treatments were approved for treating hepatitis C virus (HCV) infections, only one in three U.S. patients diagnosed with the disease have been cleared of it, according to new data from the Centers for Disease Control and Prevention.

The findings indicate that current progress falls far short of the goal of the Viral Hepatitis National Strategic Plan for the United States, which calls for eliminating HCV for at least 80% of patients with the virus by 2030.

Lead author Carolyn Wester, MD, with the CDC’s Division of Viral Hepatitis, called the low numbers “stunning” and said that the researchers found that patients face barriers to being cured at every step of the way, from being diagnosed to accessing breakthrough direct-acting antiviral (DAA) agents.

The article was published online in the CDC’s Morbidity and Mortality Weekly Report.
 

Outcomes vary by age and insurance

Using longitudinal data from Quest Diagnostics laboratories, the researchers identified 1.7 million people who had a history of HCV infection from Jan. 1, 2013, to Dec. 31, 2022.

Of those patients, 1.5 million (88%) were categorized as having undergone viral testing.

Among those who underwent such testing, 1 million (69%) were categorized as having an initial infection. Just 356,807 patients with initial infection (34%) were cured or cleared of HCV. Of those found to be cured or cleared, 23,518 (7%) were found to have persistent infection or reinfection.

Viral clearance varied greatly by insurance. While 45% of the people covered under Medicare experienced viral clearance, only 23% of the uninsured and 31% of those on Medicaid did so.

Age also played a role in viral clearance. It was highest (42%) among those aged 60 and older. Clearance was lowest (24%) among patients in the 20-39 age group, the group most likely to be newly infected in light of the surge in HCV cases because of the opioid epidemic, Dr. Wester said. Persistent infection or reinfection was also highest in the 20-39 age group.

With respect to age and insurance type combined, the highest HCV clearance rate (49%) was for patients aged 60 and older who had commercial insurance; the lowest (16%) was for uninsured patients in the 20-39 age group.

The investigators evaluated people who had been diagnosed with HCV, Dr. Wester said. “It’s estimated about 40% of people in the U.S. are unaware of their infection.” Because of this, the numbers reported in the study may vastly underestimate the true picture, she told this news organization.
 

Barriers to treatment ‘insurmountable’ without major transformation

Increased access to diagnosis, treatment, and prevention services for persons with or at risk for acquiring hepatitis C needs to be addressed to prevent progression of disease and ongoing transmission and to achieve national hepatitis C elimination goals, the authors wrote.

The biggest barriers to improving HCV clearance are the high cost of treatment, widely varying insurance coverage, insurer restrictions, and challenges in diagnosing the disease, Dr. Wester added.

Overcoming these barriers requires implementation of universal HCV screening recommendations, including HCV RNA testing for all persons with reactive HCV antibody results, provision of treatment for all persons regardless of payer, and prevention services for persons at risk for acquiring new HCV infection, the authors concluded.

“The current barriers are insurmountable without a major transformation in our nation’s response,” Dr. Wester noted.

She expressed her support of the National Hepatitis C Elimination Program, offered as part of the Biden Administration’s 2024 budget proposal. She said that the initiative “is what we need to prevent the needless suffering from hepatitis C and to potentially save not only tens of thousands of lives but tens of billions of health care dollars.”

The three-part proposal includes a national subscription model to purchase DAA agents for those most underserved: Medicaid beneficiaries, incarcerated people, the uninsured, and American Indian and Alaska Native individuals treated through the Indian Health Service.

Under this model, the federal government would negotiate with manufacturers to buy as much treatment as needed for all individuals in the underserved groups.
 

What can physicians do?

Physicians can help improve HCV treatment and outcomes by being aware of the current testing guidelines, Dr. Wester said.

Guidelines now call for hepatitis C screening at least once in a lifetime for all adults, except in settings where the prevalence of HCV infection is less than 0.1%. They also call for screening during each pregnancy, with the same regional-prevalence exception.

Recommendations include curative treatment “for nearly everybody who is living with hepatitis C,” Dr. Wester added.

These CDC guidelines came out in April 2020, a time when the medical focus shifted to COVID-19, and that may have hurt awareness, she noted.

Physicians can also help by fighting back against non–evidence-based reasons insurance companies give for restricting coverage, Dr. Wester said.

Those restrictions include requiring specialists to prescribe DAA agents instead of allowing primary care physicians to do so, as well as requiring patients to have advanced liver disease or requiring patients to demonstrate sobriety or prove they are receiving counseling prior to their being eligible for treatment, Dr. Wester said.
 

Prior authorization a problem

Stacey B. Trooskin MD, PhD, MPH, assistant professor of medicine at the University of Pennsylvania in Philadelphia, told this news organization that prior authorization has been a major barrier for obtaining medications. Prior authorization requirements differ by state.

The paperwork must be submitted by already-stretched physician offices, and appeals are common. In that time, the window for keeping patients with HCV in the health care system may be lost, said Dr. Trooskin, chief medical adviser to the National Viral Hepatitis Roundtable.

“We know that about half of all Medicaid programs have removed prior authorization for most patients entirely,” she said, “but there are still half that require prior authorization.”

Action at the federal level is also needed, Dr. Trooskin said.

The countries that are successfully eliminating HCV and have successfully deployed the lifesaving medications provide governmental support for meeting patients where they are, she added.

Support can include inpatient and outpatient substance use disorder treatment programs or support in mental health settings, she noted.

“It’s not enough to want patients to come into their primary care provider and for that primary care provider to screen them,” Dr. Trooskin said. “This is about creating health care infrastructure so that we are finding patients at greatest risk for hepatitis C and integrating hepatitis C treatment into the services they are already accessing.”

Coauthor Harvey W. Kaufman, MD, is an employee of and owns stock in Quest Diagnostics. Coauthor William A. Meyer III, PhD, is a consultant to Quest Diagnostics. No other potential conflicts of interest were disclosed. Dr. Trooskin oversees C-Change, a hepatitis C elimination program, which receives funding from Gilead Sciences.

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

In the decade since safe, curative oral treatments were approved for treating hepatitis C virus (HCV) infections, only one in three U.S. patients diagnosed with the disease have been cleared of it, according to new data from the Centers for Disease Control and Prevention.

The findings indicate that current progress falls far short of the goal of the Viral Hepatitis National Strategic Plan for the United States, which calls for eliminating HCV for at least 80% of patients with the virus by 2030.

Lead author Carolyn Wester, MD, with the CDC’s Division of Viral Hepatitis, called the low numbers “stunning” and said that the researchers found that patients face barriers to being cured at every step of the way, from being diagnosed to accessing breakthrough direct-acting antiviral (DAA) agents.

The article was published online in the CDC’s Morbidity and Mortality Weekly Report.
 

Outcomes vary by age and insurance

Using longitudinal data from Quest Diagnostics laboratories, the researchers identified 1.7 million people who had a history of HCV infection from Jan. 1, 2013, to Dec. 31, 2022.

Of those patients, 1.5 million (88%) were categorized as having undergone viral testing.

Among those who underwent such testing, 1 million (69%) were categorized as having an initial infection. Just 356,807 patients with initial infection (34%) were cured or cleared of HCV. Of those found to be cured or cleared, 23,518 (7%) were found to have persistent infection or reinfection.

Viral clearance varied greatly by insurance. While 45% of the people covered under Medicare experienced viral clearance, only 23% of the uninsured and 31% of those on Medicaid did so.

Age also played a role in viral clearance. It was highest (42%) among those aged 60 and older. Clearance was lowest (24%) among patients in the 20-39 age group, the group most likely to be newly infected in light of the surge in HCV cases because of the opioid epidemic, Dr. Wester said. Persistent infection or reinfection was also highest in the 20-39 age group.

With respect to age and insurance type combined, the highest HCV clearance rate (49%) was for patients aged 60 and older who had commercial insurance; the lowest (16%) was for uninsured patients in the 20-39 age group.

The investigators evaluated people who had been diagnosed with HCV, Dr. Wester said. “It’s estimated about 40% of people in the U.S. are unaware of their infection.” Because of this, the numbers reported in the study may vastly underestimate the true picture, she told this news organization.
 

Barriers to treatment ‘insurmountable’ without major transformation

Increased access to diagnosis, treatment, and prevention services for persons with or at risk for acquiring hepatitis C needs to be addressed to prevent progression of disease and ongoing transmission and to achieve national hepatitis C elimination goals, the authors wrote.

The biggest barriers to improving HCV clearance are the high cost of treatment, widely varying insurance coverage, insurer restrictions, and challenges in diagnosing the disease, Dr. Wester added.

Overcoming these barriers requires implementation of universal HCV screening recommendations, including HCV RNA testing for all persons with reactive HCV antibody results, provision of treatment for all persons regardless of payer, and prevention services for persons at risk for acquiring new HCV infection, the authors concluded.

“The current barriers are insurmountable without a major transformation in our nation’s response,” Dr. Wester noted.

She expressed her support of the National Hepatitis C Elimination Program, offered as part of the Biden Administration’s 2024 budget proposal. She said that the initiative “is what we need to prevent the needless suffering from hepatitis C and to potentially save not only tens of thousands of lives but tens of billions of health care dollars.”

The three-part proposal includes a national subscription model to purchase DAA agents for those most underserved: Medicaid beneficiaries, incarcerated people, the uninsured, and American Indian and Alaska Native individuals treated through the Indian Health Service.

Under this model, the federal government would negotiate with manufacturers to buy as much treatment as needed for all individuals in the underserved groups.
 

What can physicians do?

Physicians can help improve HCV treatment and outcomes by being aware of the current testing guidelines, Dr. Wester said.

Guidelines now call for hepatitis C screening at least once in a lifetime for all adults, except in settings where the prevalence of HCV infection is less than 0.1%. They also call for screening during each pregnancy, with the same regional-prevalence exception.

Recommendations include curative treatment “for nearly everybody who is living with hepatitis C,” Dr. Wester added.

These CDC guidelines came out in April 2020, a time when the medical focus shifted to COVID-19, and that may have hurt awareness, she noted.

Physicians can also help by fighting back against non–evidence-based reasons insurance companies give for restricting coverage, Dr. Wester said.

Those restrictions include requiring specialists to prescribe DAA agents instead of allowing primary care physicians to do so, as well as requiring patients to have advanced liver disease or requiring patients to demonstrate sobriety or prove they are receiving counseling prior to their being eligible for treatment, Dr. Wester said.
 

Prior authorization a problem

Stacey B. Trooskin MD, PhD, MPH, assistant professor of medicine at the University of Pennsylvania in Philadelphia, told this news organization that prior authorization has been a major barrier for obtaining medications. Prior authorization requirements differ by state.

The paperwork must be submitted by already-stretched physician offices, and appeals are common. In that time, the window for keeping patients with HCV in the health care system may be lost, said Dr. Trooskin, chief medical adviser to the National Viral Hepatitis Roundtable.

“We know that about half of all Medicaid programs have removed prior authorization for most patients entirely,” she said, “but there are still half that require prior authorization.”

Action at the federal level is also needed, Dr. Trooskin said.

The countries that are successfully eliminating HCV and have successfully deployed the lifesaving medications provide governmental support for meeting patients where they are, she added.

Support can include inpatient and outpatient substance use disorder treatment programs or support in mental health settings, she noted.

“It’s not enough to want patients to come into their primary care provider and for that primary care provider to screen them,” Dr. Trooskin said. “This is about creating health care infrastructure so that we are finding patients at greatest risk for hepatitis C and integrating hepatitis C treatment into the services they are already accessing.”

Coauthor Harvey W. Kaufman, MD, is an employee of and owns stock in Quest Diagnostics. Coauthor William A. Meyer III, PhD, is a consultant to Quest Diagnostics. No other potential conflicts of interest were disclosed. Dr. Trooskin oversees C-Change, a hepatitis C elimination program, which receives funding from Gilead Sciences.

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

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

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

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

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

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

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

A test that uses a single drop of dried blood to detect HIV, hepatitis B virus, and HCV has been validated and is now in use in some high-risk settings in Denmark, according to research presented at the annual European Congress of Clinical Microbiology & Infectious Diseases.

Molecular biologist Stephen Nilsson-Møller, MSc, and colleagues at the department of clinical microbiology, Copenhagen University Hospital, developed and validated the test, known as the Dried Blood Spot (DBS), for HIV, HBV, and HCV.

The “test that can detect low viral loads for all three viruses from a single drop of blood, and can be done using existing hospital equipment,” Mr. Nilsson-Møller said in an interview. “Importantly, it does not require venipuncture, but can be done from a drop of dried blood from the finger.”

He highlighted the utility of the new test in more challenging settings. “This method is particularly useful in high-risk settings such as homeless shelters, drug rehabilitation centers, and prisons, where needles might be misused, and it can be difficult to convince people to have the more invasive test.”

“Also, in some places – such as in low- and middle-income settings – there is a distinct risk of ruining blood samples before analysis due to limited refrigeration for transit and storage,” he added. “[Standard] blood samples need to be analyzed within 6 hours when kept at room temperature, while dried blood spots can last for 9 months at room temperature and can be mailed to a laboratory with the right equipment to analyze it.” 
 

Tiny amounts of virus detected

Mr. Nilsson-Møller was tasked with developing a test for use by the university’s department of infectious diseases to screen people in high-risk settings in the capital region of Copenhagen. The work forms part of a PhD project by Jonas Demant at the University of Copenhagen, for which he is screening for HIV, HBV, and HCV in drug rehabilitation centers, prisons, and homeless shelters. 

The study is the first to use the Hologic Panther system (a nucleic acid amplification test) combining all three viruses, Mr. Nilsson-Møller pointed out. “A tiny amount of virus can be detected because it is a very sensitive platform using transcription-mediated amplification.”

“If it detects low amounts of virus, it will create many copies very quickly, creating a signal that tells us that the sample is positive,” he explained.

The researchers collected whole blood from a finger prick, dried it out on a protein saver card (filter paper), and cut out a 1.2-cm diameter dry blood spot which was then prepared for analysis.

Twenty blood samples with known amounts of HIV, HBV, and HCV were analyzed via the DBS method (60 in total) and the viruses were detected in all of the samples.

To validate the method, the researchers used plasma with a known viral load, and a series of dilutions were performed to determine the lower limit for positive detection of all three viruses.

“Untreated patients typically have above 1 million IU/mL of viral loads in their plasma, and we found that we can detect much lower levels,” said Mr. Nilsson-Møller. “Ideally, 40 mcL of blood is good, but less should be sufficient if the test is on untreated patients.”
 

Early testing and treatment reduces morbidity and mortality

Elimination of HBV, HCV, and HIV by 2030 is a global health strategy set by the World Health Organization, but to meet this goal, new approaches for diagnostic testing are required. The DBS test for HIV, HBV, and HCV promises to make a significant contribution toward this goal.

“One in two people currently living with HIV is diagnosed late in the course of their infection, and an even larger proportion of the estimated 6 million Europeans living with chronic hepatitis B or C are not aware that they are infected,” said Anastasia Pharris, PhD, from the European Center for Disease Prevention and Control Principal Expert Infectious Diseases.

“Increasing testing coverage and uptake, especially for those most at risk, is an essential element of any strategy to eliminate HBV, HCV, and HIV in the European Union and European Economic Area,” she pointed out.

Dr. Pharris also highlighted that, while HIV, and often HBV infection, require lifelong treatment, HCV infection is now curable within a few weeks. “To maximize the benefits of individual treatment for all three infections, it is critical to test and diagnose people as soon as possible – in itself a challenge given that these infections can typically be asymptomatic for years.

“Early diagnosis of HBV, HCV, or HIV is vital as it allows people to access treatment, which significantly reduces associated long-term morbidity and mortality.

“In many cases, those most at risk of one of these infections are also more vulnerable to infection with one or both of the other viruses, making the argument for integrated testing even stronger,” she said in an interview.

Mr. Nilsson-Møller and Dr. Pharris reported no relevant financial relationships. Aptima kits for validation were provided by Hologic.

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

A test that uses a single drop of dried blood to detect HIV, hepatitis B virus, and HCV has been validated and is now in use in some high-risk settings in Denmark, according to research presented at the annual European Congress of Clinical Microbiology & Infectious Diseases.

Molecular biologist Stephen Nilsson-Møller, MSc, and colleagues at the department of clinical microbiology, Copenhagen University Hospital, developed and validated the test, known as the Dried Blood Spot (DBS), for HIV, HBV, and HCV.

The “test that can detect low viral loads for all three viruses from a single drop of blood, and can be done using existing hospital equipment,” Mr. Nilsson-Møller said in an interview. “Importantly, it does not require venipuncture, but can be done from a drop of dried blood from the finger.”

He highlighted the utility of the new test in more challenging settings. “This method is particularly useful in high-risk settings such as homeless shelters, drug rehabilitation centers, and prisons, where needles might be misused, and it can be difficult to convince people to have the more invasive test.”

“Also, in some places – such as in low- and middle-income settings – there is a distinct risk of ruining blood samples before analysis due to limited refrigeration for transit and storage,” he added. “[Standard] blood samples need to be analyzed within 6 hours when kept at room temperature, while dried blood spots can last for 9 months at room temperature and can be mailed to a laboratory with the right equipment to analyze it.” 
 

Tiny amounts of virus detected

Mr. Nilsson-Møller was tasked with developing a test for use by the university’s department of infectious diseases to screen people in high-risk settings in the capital region of Copenhagen. The work forms part of a PhD project by Jonas Demant at the University of Copenhagen, for which he is screening for HIV, HBV, and HCV in drug rehabilitation centers, prisons, and homeless shelters. 

The study is the first to use the Hologic Panther system (a nucleic acid amplification test) combining all three viruses, Mr. Nilsson-Møller pointed out. “A tiny amount of virus can be detected because it is a very sensitive platform using transcription-mediated amplification.”

“If it detects low amounts of virus, it will create many copies very quickly, creating a signal that tells us that the sample is positive,” he explained.

The researchers collected whole blood from a finger prick, dried it out on a protein saver card (filter paper), and cut out a 1.2-cm diameter dry blood spot which was then prepared for analysis.

Twenty blood samples with known amounts of HIV, HBV, and HCV were analyzed via the DBS method (60 in total) and the viruses were detected in all of the samples.

To validate the method, the researchers used plasma with a known viral load, and a series of dilutions were performed to determine the lower limit for positive detection of all three viruses.

“Untreated patients typically have above 1 million IU/mL of viral loads in their plasma, and we found that we can detect much lower levels,” said Mr. Nilsson-Møller. “Ideally, 40 mcL of blood is good, but less should be sufficient if the test is on untreated patients.”
 

Early testing and treatment reduces morbidity and mortality

Elimination of HBV, HCV, and HIV by 2030 is a global health strategy set by the World Health Organization, but to meet this goal, new approaches for diagnostic testing are required. The DBS test for HIV, HBV, and HCV promises to make a significant contribution toward this goal.

“One in two people currently living with HIV is diagnosed late in the course of their infection, and an even larger proportion of the estimated 6 million Europeans living with chronic hepatitis B or C are not aware that they are infected,” said Anastasia Pharris, PhD, from the European Center for Disease Prevention and Control Principal Expert Infectious Diseases.

“Increasing testing coverage and uptake, especially for those most at risk, is an essential element of any strategy to eliminate HBV, HCV, and HIV in the European Union and European Economic Area,” she pointed out.

Dr. Pharris also highlighted that, while HIV, and often HBV infection, require lifelong treatment, HCV infection is now curable within a few weeks. “To maximize the benefits of individual treatment for all three infections, it is critical to test and diagnose people as soon as possible – in itself a challenge given that these infections can typically be asymptomatic for years.

“Early diagnosis of HBV, HCV, or HIV is vital as it allows people to access treatment, which significantly reduces associated long-term morbidity and mortality.

“In many cases, those most at risk of one of these infections are also more vulnerable to infection with one or both of the other viruses, making the argument for integrated testing even stronger,” she said in an interview.

Mr. Nilsson-Møller and Dr. Pharris reported no relevant financial relationships. Aptima kits for validation were provided by Hologic.

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

A test that uses a single drop of dried blood to detect HIV, hepatitis B virus, and HCV has been validated and is now in use in some high-risk settings in Denmark, according to research presented at the annual European Congress of Clinical Microbiology & Infectious Diseases.

Molecular biologist Stephen Nilsson-Møller, MSc, and colleagues at the department of clinical microbiology, Copenhagen University Hospital, developed and validated the test, known as the Dried Blood Spot (DBS), for HIV, HBV, and HCV.

The “test that can detect low viral loads for all three viruses from a single drop of blood, and can be done using existing hospital equipment,” Mr. Nilsson-Møller said in an interview. “Importantly, it does not require venipuncture, but can be done from a drop of dried blood from the finger.”

He highlighted the utility of the new test in more challenging settings. “This method is particularly useful in high-risk settings such as homeless shelters, drug rehabilitation centers, and prisons, where needles might be misused, and it can be difficult to convince people to have the more invasive test.”

“Also, in some places – such as in low- and middle-income settings – there is a distinct risk of ruining blood samples before analysis due to limited refrigeration for transit and storage,” he added. “[Standard] blood samples need to be analyzed within 6 hours when kept at room temperature, while dried blood spots can last for 9 months at room temperature and can be mailed to a laboratory with the right equipment to analyze it.” 
 

Tiny amounts of virus detected

Mr. Nilsson-Møller was tasked with developing a test for use by the university’s department of infectious diseases to screen people in high-risk settings in the capital region of Copenhagen. The work forms part of a PhD project by Jonas Demant at the University of Copenhagen, for which he is screening for HIV, HBV, and HCV in drug rehabilitation centers, prisons, and homeless shelters. 

The study is the first to use the Hologic Panther system (a nucleic acid amplification test) combining all three viruses, Mr. Nilsson-Møller pointed out. “A tiny amount of virus can be detected because it is a very sensitive platform using transcription-mediated amplification.”

“If it detects low amounts of virus, it will create many copies very quickly, creating a signal that tells us that the sample is positive,” he explained.

The researchers collected whole blood from a finger prick, dried it out on a protein saver card (filter paper), and cut out a 1.2-cm diameter dry blood spot which was then prepared for analysis.

Twenty blood samples with known amounts of HIV, HBV, and HCV were analyzed via the DBS method (60 in total) and the viruses were detected in all of the samples.

To validate the method, the researchers used plasma with a known viral load, and a series of dilutions were performed to determine the lower limit for positive detection of all three viruses.

“Untreated patients typically have above 1 million IU/mL of viral loads in their plasma, and we found that we can detect much lower levels,” said Mr. Nilsson-Møller. “Ideally, 40 mcL of blood is good, but less should be sufficient if the test is on untreated patients.”
 

Early testing and treatment reduces morbidity and mortality

Elimination of HBV, HCV, and HIV by 2030 is a global health strategy set by the World Health Organization, but to meet this goal, new approaches for diagnostic testing are required. The DBS test for HIV, HBV, and HCV promises to make a significant contribution toward this goal.

“One in two people currently living with HIV is diagnosed late in the course of their infection, and an even larger proportion of the estimated 6 million Europeans living with chronic hepatitis B or C are not aware that they are infected,” said Anastasia Pharris, PhD, from the European Center for Disease Prevention and Control Principal Expert Infectious Diseases.

“Increasing testing coverage and uptake, especially for those most at risk, is an essential element of any strategy to eliminate HBV, HCV, and HIV in the European Union and European Economic Area,” she pointed out.

Dr. Pharris also highlighted that, while HIV, and often HBV infection, require lifelong treatment, HCV infection is now curable within a few weeks. “To maximize the benefits of individual treatment for all three infections, it is critical to test and diagnose people as soon as possible – in itself a challenge given that these infections can typically be asymptomatic for years.

“Early diagnosis of HBV, HCV, or HIV is vital as it allows people to access treatment, which significantly reduces associated long-term morbidity and mortality.

“In many cases, those most at risk of one of these infections are also more vulnerable to infection with one or both of the other viruses, making the argument for integrated testing even stronger,” she said in an interview.

Mr. Nilsson-Møller and Dr. Pharris reported no relevant financial relationships. Aptima kits for validation were provided by Hologic.

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

Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

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

Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

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

Researchers studying differences in treatment initiation for chronic hepatitis B (CHB) among a large, multiracial cohort in North America did not find evidence of disparities by race or socioeconomic status.

Instead, they observed a similar gap across races between the number of people eligible for treatment and those receiving it.

That gap suggests that treatment guidelines need to be simplified and that efforts to increase hepatitis B virus (HBV) awareness and train more clinicians are needed to achieve the World Health Organization’s goal of eliminating HBV by 2030, the researchers write.

The Hepatitis B Research Network study was published online in JAMA Network Open.

The prevalence of CHB in the United States is estimated at 2.4 million. It disproportionately affects persons of Asian or African descent, the investigators note. Their study examined whether treatment initiation and outcomes differ between African American and Black, Asian, and White participants, as well as between African American and Black participants born in North America and East or West Africa.

The research involved 1,550 adult patients: 1,157 Asian American, 193 African American or Black (39 born in the United States, 90 in East Africa, 53 in West Africa, and 11 elsewhere), 157 White, and 43 who identified as being of “other races.” All had CHB but were not receiving antiviral treatment at enrollment.

Participants came from 20 centers in the United States and one in Canada. They underwent clinical and laboratory assessments and could receive anti-HBV treatment after they enrolled. Enrollment was from Jan. 14, 2011, to Jan. 28, 2018. Participants were followed at 12 and 24 weeks and every 24 weeks thereafter in the longitudinal cohort study by Mandana Khalili, MD, division of gastroenterology and hepatology, University of California, San Francisco, and colleagues.

Information on patients’ country of birth, duration of U.S. or Canadian residency, educational level, employment, insurance, prior antiviral treatment, family history of HBV or hepatocellular carcinoma (HCC), and mode of transmission were collected by research coordinators.
 

Treatment initiation

During the study period, slightly fewer than one-third (32.5%) of the participants initiated treatment. The incidences were 4.8 per 100 person-years in African American or Black participants, 9.9 per 100 person-years in Asian participants, 6.6 per 100 person-years in White participants, and 7.9 per 100 person-years in those of other races (P < .001).

A lower percentage of African American and Black participants (14%) met the American Association for the Study of Liver Diseases treatment criteria, compared with Asian (22%) and White (27%) participants (P = .01).

When the researchers compared cumulative probability of initiating treatment by race for those who met criteria for treatment, they found no significant differences by race.

At 72 weeks, initiation probability was 0.45 for African American and Black patients and 0.51 for Asian and White patients (P = .68). Similarly, among African American and Black participants who met treatment criteria, there were no significant differences in cumulative probability of treatment by region of birth.

The cumulative percentage of treatment initiation for those who met guideline-based criteria was 62%.

“Among participants with a treatment indication, treatment rates did not differ significantly by race, despite marked differences in educational level, income, and type of health care insurance across the racial groups,” the researchers write. “Moreover, race was not an independent estimator of treatment initiation when adjusting for known factors associated with a higher risk of adverse clinical outcomes, namely, HBV DNA, disease severity, sex, and age.”

Adverse liver outcomes (hepatic decompensation, HCC, liver transplant, and death) were rare and did not vary significantly by race, the researchers write.

One study limitation is that participants were linked to specialty liver clinics, so the findings may not be generalizable to patients who receive care in other settings, the authors note.

The results are “reassuring,” said senior author Anna S. Lok, MD, division of gastroenterology and hepatology at University of Michigan in Ann Arbor. However, she noted, study participants had already overcome barriers to receiving care at major academic centers.

“Once you get into the big academic liver centers, then maybe everything is equal, but in the real world, a lot of people don’t ever get to the big liver centers,” she said. The question becomes: “Are we serving only a portion of the patient population?”

Many factors drive the decision to undergo treatment, including the doctor’s opinion as to need and the patient’s desire to receive treatment, she said.

The study participants who were more likely to get treated were those with higher-level disease who had a stronger indication for treatment, Dr. Lok said.
 

Finding the disparities

Centers for Disease Control and Prevention statistics show that Black people are 3.9 times more likely to have CHB and 2.5 times more likely to die from it than White people, notes H. Nina Kim, MD, with the department of medicine, University of Washington, Seattle, in an accompanying invited commentary.

“The fact that we have not observed racial disparities in treatment initiation does not mean none exist; it means we have to look harder to find them,” she writes.

“We need to examine whether our guidelines for HBV treatment are so complex that it becomes the purview of specialists, thereby restricting access and deepening inequities,” Dr. Kim adds. “We should look closely at retention in care, the step that precedes treatment, and stratify this outcome by race and ethnicity.”

Primary care physicians in some regions might find it difficult to manage patients who have hepatitis B because they see so few of them, Dr. Lok noted.

Dr. Khalili has received grants and consulting fees from Gilead Sciences Inc and grants from Intercept Pharmaceuticals outside the submitted work. Dr. Lok has received grants from Target and consultant fees from Abbott, Ambys, Arbutus, Chroma, Clear B, Enanta, Enochian, GNI, GlaxoSmithKline, Eli Lilly, and Virion outside the submitted work. Coauthors have received grants, consulting fees, or personal fees from Bayer, Boston Scientific, Exact Sciences, Fujifilm Medical Sciences, Gilead Sciences, Glycotest, Redhill Biopharma, Target RWE, MedEd Design, Pontifax, Global Life, the Lynx Group, AstraZeneca, Eisai, Novartis Venture Fund, Grail, QED Therapeutics, Genentech, Hepion Pharmaceuticals, Roche, Abbott, AbbVie, and Pfizer. Dr. Kim has received grants from Gilead Sciences (paid to her institution) outside the submitted work.

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

Investigators found that simultaneous infection with adeno-associated virus type 2 (AAV2) and certain other viruses is associated with the outbreak of mysterious pediatric hepatitis cases worldwide.

Coinfection with AAV2 and a human adenovirus (HAdV), in particular, appears to leave some children more vulnerable to this acute hepatitis of unknown origin, researchers reported in three studies published online in Nature. Coinfection with Epstein-Barr virus (EBV), herpes, and enterovirus also were found. Adeno-associated viruses are not considered pathogenic on their own and require a “helper” virus for productive infection.

“I am quite confident that we have identified the key viruses involved because we used a comprehensive metagenomic sequencing approach to look for potential infections from any virus or non-viral pathogen,” Charles Chiu, MD, PhD, senior author and professor of laboratory medicine and medicine/infectious diseases at the University of California, San Francisco, said in an interview.

Dr. Chiu and colleagues propose that lockdowns and social isolation during the COVID-19 pandemic left more children susceptible. A major aspect of immunity in childhood is the adaptive immune response – both cell-mediated and humoral – shaped in part by exposure to viruses and other pathogens early in life, Dr. Chiu said.

“Due to COVID-19, a large population of children did not experience this, so it is possible once restrictions were lifted, they were suddenly exposed over a short period of time to multiple viruses that, in a poorly trained immune system, would have increased their risk of developing severe disease,” he said.

This theory has been popular, especially because cases of unexplained acute hepatitis peaked during the height of the COVID-19 pandemic when isolation was common, William F. Balistreri, MD, who was not affiliated with the study, told this news organization. Dr. Balistreri is professor of pediatrics and director emeritus of the Pediatric Liver Care Center at Cincinnati Children’s Hospital Medical Center.
 

Identifying the culprits

Determining what factors might be involved was the main aim of the etiology study by Dr. Chiu and colleagues published online  in Nature.

The journal simultaneously published a genomic study confirming the presence of AAV2 and other suspected viruses and a genomic and laboratory study further corroborating the results.

More than 1,000 children worldwide had been diagnosed with unexplained acute pediatric hepatitis as of August 2022. In the United States, there have been 358 cases, including 22 in which the child required a liver transplant and 13 in which the child died.

This new form of hepatitis, first detected in October 2021, does not fit into existing classifications of types A through E, so some researchers refer to the condition as acute non–A-E hepatitis of unknown etiology.

The investigators started with an important clue based on previous research: the role adenovirus might play. Dr. Chiu and colleagues assessed 27 blood, stool, and other samples from 16 affected children who each previously tested positive for adenoviruses. The researchers included cases of the condition identified up until May 22, 2022. The median age was 3 years, and approximately half were boys.

They compared viruses present in these children with those in 113 controls without the mysterious hepatitis. The control group consisted of 15 children who were hospitalized with a nonhepatitis inflammatory condition, 27 with a noninflammatory condition, 30 with acute hepatitis of known origin, 12 with acute gastroenteritis and an HAdV-positive stool sample, and 11 with acute gastroenteritis and an HAdV-negative stool sample, as well as 18 blood donors. The median age was 7 years.

The researchers assessed samples using multiple technologies, including metagenomic sequencing, tiling multiplex polymerase chain reaction (PCR) amplicon sequencing, metagenomic sequencing with probe capture viral enrichment, and virus-specific PCR. Many of these advanced techniques were not even available 5-10 years ago, Dr. Chiu said.
 

Key findings

Blood samples were available for 14 of the 16 children with acute hepatitis of unknown origin. Among this study group, AAV2 was found in 13 (93%). No other adeno-associated viruses were found. HAdV was detected in all 14 children: HAdV-41 in 11 children and HAdV-40, HAdV-2, and an untypeable strain in one child each. This finding was not intuitive because HAdVs are not commonly associated with hepatitis, according to the study.

AAV2 was much less common in the control group. For example, it was found in none of the children with hepatitis of known origin and in only four children (3.5%) with acute gastroenteritis and HAdV-positive stool. Of note, neither AAV2 nor HAdV-41 was detected among the 30 pediatric controls with acute hepatitis of defined etiology nor 42 of the hospitalized children without hepatitis, the researchers wrote.

In the search for other viruses in the study group, metagenomic sequencing detected EBV, also known as human herpesvirus (HHV)–4, in two children, cytomegalovirus (CMV) in one child, and HAdV type C in one child.

Analysis of whole blood revealed enterovirus A71 in one patient. HAdV type C also was detected in one child on the basis of a nasopharyngeal swab, and picobirnavirus was found in a stool sample from another patient.

Researchers conducted virus-specific PCR tests on both patient groups to identify additional viruses that may be associated with the unexplained acute hepatitis. EBV/HHV-4 was detected in 11 children (79%) in the study group vs. in 1 child (0.88%) in the control group. HHV-6 was detected in seven children (50%) in the study group, compared with one case in the control group. CMV was not detected in any of the children in the study group versus vs. two children (1.8%) in the control group.

“Although we found significant differences in the relative proportions of EBV and HHV-6 in cases compared to controls, we do not believe that these viruses are the primary cause of acute severe hepatitis,” the researchers wrote. The viral load of the two herpes viruses were very low, so the positive results could represent integrated proviral DNA rather than bona fide low-level herpesvirus. In addition, herpesvirus can be reactivated by an inflammatory condition.

“Nevertheless, it is striking that among the 16 cases (in the study group), dual, triple, or quadruple infections with AAV2, adenovirus, and one or both herpesviruses were detected in whole blood from at least 12 cases (75%),” the researchers wrote.
 

Management of suspected hepatitis

The study’s key messages for parents and health care providers “are awareness and reassurance,” Dr. Balistreri said in an interview.

Vigilance also is warranted if a child develops prodromal symptoms including respiratory and/or gastrointestinal signs such as nausea, vomiting, diarrhea, and abdomen pain, he said. If jaundice or scleral icterus is noted, then hepatitis should be suspected.

Some patients need hospitalization and quickly recover. In very rare instances, the inflammation may progress to liver failure and transplantation, Dr. Balistreri said.

“Reassurance is based on the good news that most children with acute hepatitis get better. If a case arises, it is good practice to keep the child well hydrated, offer a normal diet, and avoid medications that may be cleared by the liver,” Dr. Balistreri added.

“Of course, COVID-19 vaccination is strongly suggested,” he said.

Some existing treatments could help against unexplained acute hepatitis, Dr. Chiu said. “The findings suggest that antiviral therapy might be effective in these cases.”

Cidofovir can be effective against adenovirus, according to a report in The Lancet . Similarly, ganciclovir or valganciclovir may have activity against EBV/HHV-4 or HHV-6, Dr. Chiu said. “However, antiviral therapy is not available for AAV2.”

The three studies published in Nature “offer compelling evidence, from disparate centers, of a linkage of outbreak cases to infection by AAV2,” Dr. Balistreri said. The studies also suggest that liver injury was related to abnormal immune responses. This is an important clinical distinction, indicating a potential therapeutic approach to future cases – immunosuppression rather than anti-adenoviral agents, he said.

“We await further studies of this important concept,” Dr. Balistreri said.

Many unanswered questions remain about the condition’s etiology, he added. Is there a synergy or shared susceptibility related to SARS-CoV-2? Is the COVID-19 virus helping to trigger these infections, or does it increase the risk once infected? Also, are other epigenetic factors or viruses involved?
 

Moving forward

The next steps in the research could go beyond identifying presence of these different viruses and determining which one(s) are contributing the most to the acute pediatric hepatitis, Dr. Chiu said.

The researchers also would like to test early results from the United Kingdom that identified a potential association of acute severe hepatitis with the presence of human leukocyte antigen genotype DRB1*04:01, he added.

They also might investigate other unintended potential clinical consequences of the COVID-19 pandemic, including long COVID and resurgence of infections from other viruses, such as respiratory syncytial virus, influenza, and enterovirus D68.

The study was supported by the Centers for Disease Control and Prevention, the National Institutes of Health, the Department of Homeland Security, and other grants. Dr. Chiu is a founder of Delve Bio and on the scientific advisory board for Delve Bio, Mammoth Biosciences, BiomeSense, and Poppy Health. Dr. Balistreri had no relevant disclosures.
 

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

Investigators found that simultaneous infection with adeno-associated virus type 2 (AAV2) and certain other viruses is associated with the outbreak of mysterious pediatric hepatitis cases worldwide.

Coinfection with AAV2 and a human adenovirus (HAdV), in particular, appears to leave some children more vulnerable to this acute hepatitis of unknown origin, researchers reported in three studies published online in Nature. Coinfection with Epstein-Barr virus (EBV), herpes, and enterovirus also were found. Adeno-associated viruses are not considered pathogenic on their own and require a “helper” virus for productive infection.

“I am quite confident that we have identified the key viruses involved because we used a comprehensive metagenomic sequencing approach to look for potential infections from any virus or non-viral pathogen,” Charles Chiu, MD, PhD, senior author and professor of laboratory medicine and medicine/infectious diseases at the University of California, San Francisco, said in an interview.

Dr. Chiu and colleagues propose that lockdowns and social isolation during the COVID-19 pandemic left more children susceptible. A major aspect of immunity in childhood is the adaptive immune response – both cell-mediated and humoral – shaped in part by exposure to viruses and other pathogens early in life, Dr. Chiu said.

“Due to COVID-19, a large population of children did not experience this, so it is possible once restrictions were lifted, they were suddenly exposed over a short period of time to multiple viruses that, in a poorly trained immune system, would have increased their risk of developing severe disease,” he said.

This theory has been popular, especially because cases of unexplained acute hepatitis peaked during the height of the COVID-19 pandemic when isolation was common, William F. Balistreri, MD, who was not affiliated with the study, told this news organization. Dr. Balistreri is professor of pediatrics and director emeritus of the Pediatric Liver Care Center at Cincinnati Children’s Hospital Medical Center.
 

Identifying the culprits

Determining what factors might be involved was the main aim of the etiology study by Dr. Chiu and colleagues published online  in Nature.

The journal simultaneously published a genomic study confirming the presence of AAV2 and other suspected viruses and a genomic and laboratory study further corroborating the results.

More than 1,000 children worldwide had been diagnosed with unexplained acute pediatric hepatitis as of August 2022. In the United States, there have been 358 cases, including 22 in which the child required a liver transplant and 13 in which the child died.

This new form of hepatitis, first detected in October 2021, does not fit into existing classifications of types A through E, so some researchers refer to the condition as acute non–A-E hepatitis of unknown etiology.

The investigators started with an important clue based on previous research: the role adenovirus might play. Dr. Chiu and colleagues assessed 27 blood, stool, and other samples from 16 affected children who each previously tested positive for adenoviruses. The researchers included cases of the condition identified up until May 22, 2022. The median age was 3 years, and approximately half were boys.

They compared viruses present in these children with those in 113 controls without the mysterious hepatitis. The control group consisted of 15 children who were hospitalized with a nonhepatitis inflammatory condition, 27 with a noninflammatory condition, 30 with acute hepatitis of known origin, 12 with acute gastroenteritis and an HAdV-positive stool sample, and 11 with acute gastroenteritis and an HAdV-negative stool sample, as well as 18 blood donors. The median age was 7 years.

The researchers assessed samples using multiple technologies, including metagenomic sequencing, tiling multiplex polymerase chain reaction (PCR) amplicon sequencing, metagenomic sequencing with probe capture viral enrichment, and virus-specific PCR. Many of these advanced techniques were not even available 5-10 years ago, Dr. Chiu said.
 

Key findings

Blood samples were available for 14 of the 16 children with acute hepatitis of unknown origin. Among this study group, AAV2 was found in 13 (93%). No other adeno-associated viruses were found. HAdV was detected in all 14 children: HAdV-41 in 11 children and HAdV-40, HAdV-2, and an untypeable strain in one child each. This finding was not intuitive because HAdVs are not commonly associated with hepatitis, according to the study.

AAV2 was much less common in the control group. For example, it was found in none of the children with hepatitis of known origin and in only four children (3.5%) with acute gastroenteritis and HAdV-positive stool. Of note, neither AAV2 nor HAdV-41 was detected among the 30 pediatric controls with acute hepatitis of defined etiology nor 42 of the hospitalized children without hepatitis, the researchers wrote.

In the search for other viruses in the study group, metagenomic sequencing detected EBV, also known as human herpesvirus (HHV)–4, in two children, cytomegalovirus (CMV) in one child, and HAdV type C in one child.

Analysis of whole blood revealed enterovirus A71 in one patient. HAdV type C also was detected in one child on the basis of a nasopharyngeal swab, and picobirnavirus was found in a stool sample from another patient.

Researchers conducted virus-specific PCR tests on both patient groups to identify additional viruses that may be associated with the unexplained acute hepatitis. EBV/HHV-4 was detected in 11 children (79%) in the study group vs. in 1 child (0.88%) in the control group. HHV-6 was detected in seven children (50%) in the study group, compared with one case in the control group. CMV was not detected in any of the children in the study group versus vs. two children (1.8%) in the control group.

“Although we found significant differences in the relative proportions of EBV and HHV-6 in cases compared to controls, we do not believe that these viruses are the primary cause of acute severe hepatitis,” the researchers wrote. The viral load of the two herpes viruses were very low, so the positive results could represent integrated proviral DNA rather than bona fide low-level herpesvirus. In addition, herpesvirus can be reactivated by an inflammatory condition.

“Nevertheless, it is striking that among the 16 cases (in the study group), dual, triple, or quadruple infections with AAV2, adenovirus, and one or both herpesviruses were detected in whole blood from at least 12 cases (75%),” the researchers wrote.
 

Management of suspected hepatitis

The study’s key messages for parents and health care providers “are awareness and reassurance,” Dr. Balistreri said in an interview.

Vigilance also is warranted if a child develops prodromal symptoms including respiratory and/or gastrointestinal signs such as nausea, vomiting, diarrhea, and abdomen pain, he said. If jaundice or scleral icterus is noted, then hepatitis should be suspected.

Some patients need hospitalization and quickly recover. In very rare instances, the inflammation may progress to liver failure and transplantation, Dr. Balistreri said.

“Reassurance is based on the good news that most children with acute hepatitis get better. If a case arises, it is good practice to keep the child well hydrated, offer a normal diet, and avoid medications that may be cleared by the liver,” Dr. Balistreri added.

“Of course, COVID-19 vaccination is strongly suggested,” he said.

Some existing treatments could help against unexplained acute hepatitis, Dr. Chiu said. “The findings suggest that antiviral therapy might be effective in these cases.”

Cidofovir can be effective against adenovirus, according to a report in The Lancet . Similarly, ganciclovir or valganciclovir may have activity against EBV/HHV-4 or HHV-6, Dr. Chiu said. “However, antiviral therapy is not available for AAV2.”

The three studies published in Nature “offer compelling evidence, from disparate centers, of a linkage of outbreak cases to infection by AAV2,” Dr. Balistreri said. The studies also suggest that liver injury was related to abnormal immune responses. This is an important clinical distinction, indicating a potential therapeutic approach to future cases – immunosuppression rather than anti-adenoviral agents, he said.

“We await further studies of this important concept,” Dr. Balistreri said.

Many unanswered questions remain about the condition’s etiology, he added. Is there a synergy or shared susceptibility related to SARS-CoV-2? Is the COVID-19 virus helping to trigger these infections, or does it increase the risk once infected? Also, are other epigenetic factors or viruses involved?
 

Moving forward

The next steps in the research could go beyond identifying presence of these different viruses and determining which one(s) are contributing the most to the acute pediatric hepatitis, Dr. Chiu said.

The researchers also would like to test early results from the United Kingdom that identified a potential association of acute severe hepatitis with the presence of human leukocyte antigen genotype DRB1*04:01, he added.

They also might investigate other unintended potential clinical consequences of the COVID-19 pandemic, including long COVID and resurgence of infections from other viruses, such as respiratory syncytial virus, influenza, and enterovirus D68.

The study was supported by the Centers for Disease Control and Prevention, the National Institutes of Health, the Department of Homeland Security, and other grants. Dr. Chiu is a founder of Delve Bio and on the scientific advisory board for Delve Bio, Mammoth Biosciences, BiomeSense, and Poppy Health. Dr. Balistreri had no relevant disclosures.
 

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

Investigators found that simultaneous infection with adeno-associated virus type 2 (AAV2) and certain other viruses is associated with the outbreak of mysterious pediatric hepatitis cases worldwide.

Coinfection with AAV2 and a human adenovirus (HAdV), in particular, appears to leave some children more vulnerable to this acute hepatitis of unknown origin, researchers reported in three studies published online in Nature. Coinfection with Epstein-Barr virus (EBV), herpes, and enterovirus also were found. Adeno-associated viruses are not considered pathogenic on their own and require a “helper” virus for productive infection.

“I am quite confident that we have identified the key viruses involved because we used a comprehensive metagenomic sequencing approach to look for potential infections from any virus or non-viral pathogen,” Charles Chiu, MD, PhD, senior author and professor of laboratory medicine and medicine/infectious diseases at the University of California, San Francisco, said in an interview.

Dr. Chiu and colleagues propose that lockdowns and social isolation during the COVID-19 pandemic left more children susceptible. A major aspect of immunity in childhood is the adaptive immune response – both cell-mediated and humoral – shaped in part by exposure to viruses and other pathogens early in life, Dr. Chiu said.

“Due to COVID-19, a large population of children did not experience this, so it is possible once restrictions were lifted, they were suddenly exposed over a short period of time to multiple viruses that, in a poorly trained immune system, would have increased their risk of developing severe disease,” he said.

This theory has been popular, especially because cases of unexplained acute hepatitis peaked during the height of the COVID-19 pandemic when isolation was common, William F. Balistreri, MD, who was not affiliated with the study, told this news organization. Dr. Balistreri is professor of pediatrics and director emeritus of the Pediatric Liver Care Center at Cincinnati Children’s Hospital Medical Center.
 

Identifying the culprits

Determining what factors might be involved was the main aim of the etiology study by Dr. Chiu and colleagues published online  in Nature.

The journal simultaneously published a genomic study confirming the presence of AAV2 and other suspected viruses and a genomic and laboratory study further corroborating the results.

More than 1,000 children worldwide had been diagnosed with unexplained acute pediatric hepatitis as of August 2022. In the United States, there have been 358 cases, including 22 in which the child required a liver transplant and 13 in which the child died.

This new form of hepatitis, first detected in October 2021, does not fit into existing classifications of types A through E, so some researchers refer to the condition as acute non–A-E hepatitis of unknown etiology.

The investigators started with an important clue based on previous research: the role adenovirus might play. Dr. Chiu and colleagues assessed 27 blood, stool, and other samples from 16 affected children who each previously tested positive for adenoviruses. The researchers included cases of the condition identified up until May 22, 2022. The median age was 3 years, and approximately half were boys.

They compared viruses present in these children with those in 113 controls without the mysterious hepatitis. The control group consisted of 15 children who were hospitalized with a nonhepatitis inflammatory condition, 27 with a noninflammatory condition, 30 with acute hepatitis of known origin, 12 with acute gastroenteritis and an HAdV-positive stool sample, and 11 with acute gastroenteritis and an HAdV-negative stool sample, as well as 18 blood donors. The median age was 7 years.

The researchers assessed samples using multiple technologies, including metagenomic sequencing, tiling multiplex polymerase chain reaction (PCR) amplicon sequencing, metagenomic sequencing with probe capture viral enrichment, and virus-specific PCR. Many of these advanced techniques were not even available 5-10 years ago, Dr. Chiu said.
 

Key findings

Blood samples were available for 14 of the 16 children with acute hepatitis of unknown origin. Among this study group, AAV2 was found in 13 (93%). No other adeno-associated viruses were found. HAdV was detected in all 14 children: HAdV-41 in 11 children and HAdV-40, HAdV-2, and an untypeable strain in one child each. This finding was not intuitive because HAdVs are not commonly associated with hepatitis, according to the study.

AAV2 was much less common in the control group. For example, it was found in none of the children with hepatitis of known origin and in only four children (3.5%) with acute gastroenteritis and HAdV-positive stool. Of note, neither AAV2 nor HAdV-41 was detected among the 30 pediatric controls with acute hepatitis of defined etiology nor 42 of the hospitalized children without hepatitis, the researchers wrote.

In the search for other viruses in the study group, metagenomic sequencing detected EBV, also known as human herpesvirus (HHV)–4, in two children, cytomegalovirus (CMV) in one child, and HAdV type C in one child.

Analysis of whole blood revealed enterovirus A71 in one patient. HAdV type C also was detected in one child on the basis of a nasopharyngeal swab, and picobirnavirus was found in a stool sample from another patient.

Researchers conducted virus-specific PCR tests on both patient groups to identify additional viruses that may be associated with the unexplained acute hepatitis. EBV/HHV-4 was detected in 11 children (79%) in the study group vs. in 1 child (0.88%) in the control group. HHV-6 was detected in seven children (50%) in the study group, compared with one case in the control group. CMV was not detected in any of the children in the study group versus vs. two children (1.8%) in the control group.

“Although we found significant differences in the relative proportions of EBV and HHV-6 in cases compared to controls, we do not believe that these viruses are the primary cause of acute severe hepatitis,” the researchers wrote. The viral load of the two herpes viruses were very low, so the positive results could represent integrated proviral DNA rather than bona fide low-level herpesvirus. In addition, herpesvirus can be reactivated by an inflammatory condition.

“Nevertheless, it is striking that among the 16 cases (in the study group), dual, triple, or quadruple infections with AAV2, adenovirus, and one or both herpesviruses were detected in whole blood from at least 12 cases (75%),” the researchers wrote.
 

Management of suspected hepatitis

The study’s key messages for parents and health care providers “are awareness and reassurance,” Dr. Balistreri said in an interview.

Vigilance also is warranted if a child develops prodromal symptoms including respiratory and/or gastrointestinal signs such as nausea, vomiting, diarrhea, and abdomen pain, he said. If jaundice or scleral icterus is noted, then hepatitis should be suspected.

Some patients need hospitalization and quickly recover. In very rare instances, the inflammation may progress to liver failure and transplantation, Dr. Balistreri said.

“Reassurance is based on the good news that most children with acute hepatitis get better. If a case arises, it is good practice to keep the child well hydrated, offer a normal diet, and avoid medications that may be cleared by the liver,” Dr. Balistreri added.

“Of course, COVID-19 vaccination is strongly suggested,” he said.

Some existing treatments could help against unexplained acute hepatitis, Dr. Chiu said. “The findings suggest that antiviral therapy might be effective in these cases.”

Cidofovir can be effective against adenovirus, according to a report in The Lancet . Similarly, ganciclovir or valganciclovir may have activity against EBV/HHV-4 or HHV-6, Dr. Chiu said. “However, antiviral therapy is not available for AAV2.”

The three studies published in Nature “offer compelling evidence, from disparate centers, of a linkage of outbreak cases to infection by AAV2,” Dr. Balistreri said. The studies also suggest that liver injury was related to abnormal immune responses. This is an important clinical distinction, indicating a potential therapeutic approach to future cases – immunosuppression rather than anti-adenoviral agents, he said.

“We await further studies of this important concept,” Dr. Balistreri said.

Many unanswered questions remain about the condition’s etiology, he added. Is there a synergy or shared susceptibility related to SARS-CoV-2? Is the COVID-19 virus helping to trigger these infections, or does it increase the risk once infected? Also, are other epigenetic factors or viruses involved?
 

Moving forward

The next steps in the research could go beyond identifying presence of these different viruses and determining which one(s) are contributing the most to the acute pediatric hepatitis, Dr. Chiu said.

The researchers also would like to test early results from the United Kingdom that identified a potential association of acute severe hepatitis with the presence of human leukocyte antigen genotype DRB1*04:01, he added.

They also might investigate other unintended potential clinical consequences of the COVID-19 pandemic, including long COVID and resurgence of infections from other viruses, such as respiratory syncytial virus, influenza, and enterovirus D68.

The study was supported by the Centers for Disease Control and Prevention, the National Institutes of Health, the Department of Homeland Security, and other grants. Dr. Chiu is a founder of Delve Bio and on the scientific advisory board for Delve Bio, Mammoth Biosciences, BiomeSense, and Poppy Health. Dr. Balistreri had no relevant disclosures.
 

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

This transcript has been edited for clarity.

I’m going to open this week with a case.

A 56-year-old musician presents with diffuse abdominal pain, cramping, and jaundice. His medical history is notable for years of diffuse abdominal complaints, characterized by disabling bouts of diarrhea.

In addition to the jaundice, this acute illness was accompanied by fever as well as diffuse edema and ascites. The patient underwent several abdominal paracenteses to drain excess fluid. One consulting physician administered alcohol to relieve pain, to little avail.

The patient succumbed to his illness. An autopsy showed diffuse liver injury, as well as papillary necrosis of the kidneys. Notably, the nerves of his auditory canal were noted to be thickened, along with the bony part of the skull, consistent with Paget disease of the bone and explaining, potentially, why the talented musician had gone deaf at such a young age.

An interesting note on social history: The patient had apparently developed some feelings for the niece of that doctor who prescribed alcohol. Her name was Therese, perhaps mistranscribed as Elise, and it seems that he may have written this song for her.

This week, we unravel the curious case of Ludwig van Beethoven, thanks to modern DNA extraction techniques, genome-wide association studies, and eight locks of hair.

162775_pho1.JPG

We’re talking about this paper in Current Biology, by Tristan Begg and colleagues, which gives us a look into the very genome of what some would argue is the world’s greatest composer.

The ability to extract DNA from older specimens has transformed the fields of anthropology, archaeology, and history, and now, perhaps, musicology as well.

The researchers identified eight locks of hair in private and public collections, all attributed to the maestro.

162775_pho2.JPG

162775_pho3.JPG

162775_pho4.JPG

162775_pho5.JPG

162775_pho6.JPG

Dr. Wilson is associate professor, department of medicine, and director, Clinical and Translational Research Accelerator, at Yale University, New Haven, Conn. He reported no conflicts of interest.

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

This transcript has been edited for clarity.

I’m going to open this week with a case.

A 56-year-old musician presents with diffuse abdominal pain, cramping, and jaundice. His medical history is notable for years of diffuse abdominal complaints, characterized by disabling bouts of diarrhea.

In addition to the jaundice, this acute illness was accompanied by fever as well as diffuse edema and ascites. The patient underwent several abdominal paracenteses to drain excess fluid. One consulting physician administered alcohol to relieve pain, to little avail.

The patient succumbed to his illness. An autopsy showed diffuse liver injury, as well as papillary necrosis of the kidneys. Notably, the nerves of his auditory canal were noted to be thickened, along with the bony part of the skull, consistent with Paget disease of the bone and explaining, potentially, why the talented musician had gone deaf at such a young age.

An interesting note on social history: The patient had apparently developed some feelings for the niece of that doctor who prescribed alcohol. Her name was Therese, perhaps mistranscribed as Elise, and it seems that he may have written this song for her.

This week, we unravel the curious case of Ludwig van Beethoven, thanks to modern DNA extraction techniques, genome-wide association studies, and eight locks of hair.

162775_pho1.JPG

We’re talking about this paper in Current Biology, by Tristan Begg and colleagues, which gives us a look into the very genome of what some would argue is the world’s greatest composer.

The ability to extract DNA from older specimens has transformed the fields of anthropology, archaeology, and history, and now, perhaps, musicology as well.

The researchers identified eight locks of hair in private and public collections, all attributed to the maestro.

162775_pho2.JPG

162775_pho3.JPG

162775_pho4.JPG

162775_pho5.JPG

162775_pho6.JPG

Dr. Wilson is associate professor, department of medicine, and director, Clinical and Translational Research Accelerator, at Yale University, New Haven, Conn. He reported no conflicts of interest.

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

This transcript has been edited for clarity.

I’m going to open this week with a case.

A 56-year-old musician presents with diffuse abdominal pain, cramping, and jaundice. His medical history is notable for years of diffuse abdominal complaints, characterized by disabling bouts of diarrhea.

In addition to the jaundice, this acute illness was accompanied by fever as well as diffuse edema and ascites. The patient underwent several abdominal paracenteses to drain excess fluid. One consulting physician administered alcohol to relieve pain, to little avail.

The patient succumbed to his illness. An autopsy showed diffuse liver injury, as well as papillary necrosis of the kidneys. Notably, the nerves of his auditory canal were noted to be thickened, along with the bony part of the skull, consistent with Paget disease of the bone and explaining, potentially, why the talented musician had gone deaf at such a young age.

An interesting note on social history: The patient had apparently developed some feelings for the niece of that doctor who prescribed alcohol. Her name was Therese, perhaps mistranscribed as Elise, and it seems that he may have written this song for her.

This week, we unravel the curious case of Ludwig van Beethoven, thanks to modern DNA extraction techniques, genome-wide association studies, and eight locks of hair.

162775_pho1.JPG

We’re talking about this paper in Current Biology, by Tristan Begg and colleagues, which gives us a look into the very genome of what some would argue is the world’s greatest composer.

The ability to extract DNA from older specimens has transformed the fields of anthropology, archaeology, and history, and now, perhaps, musicology as well.

The researchers identified eight locks of hair in private and public collections, all attributed to the maestro.

162775_pho2.JPG

162775_pho3.JPG

162775_pho4.JPG

162775_pho5.JPG

162775_pho6.JPG

Dr. Wilson is associate professor, department of medicine, and director, Clinical and Translational Research Accelerator, at Yale University, New Haven, Conn. He reported no conflicts of interest.

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

All adults should be tested for hepatitis B virus (HBV) at least once in their lifetime, according to updated guidelines from the Centers for Disease Control and Prevention.

This is the first update to HBV screening guidelines since 2008, the agency said.

“Risk-based testing alone has not identified most persons living with chronic HBV infection and is considered inefficient for providers to implement,” the authors wrote in the new guidance, published in the CDC’s Morbidity and Mortality Weekly Report. “Universal screening of adults for HBV infection is cost-effective, compared with risk-based screening and averts liver disease and death. Although a curative treatment is not yet available, early diagnosis and treatment of chronic HBV infections reduces the risk for cirrhosis, liver cancer, and death.”

Howard Lee, MD, an assistant professor in the section of gastroenterology and hepatology at Baylor College of Medicine in Houston, agreed that risk-based screening has not been effective. A universal screening approach “is the way to go,” he said. With this new screening approach, patients can get tested without having to admit that they may be at risk for a chronic disease like HIV and HBV, which can be stigmatizing, said Dr. Lee, who was not involved with making these recommendations.

An estimated 580,000 to 2.4 million individuals are living with HBV infection in the United States, and two-thirds may be unaware they are infected, according to the CDC. The virus spreads through contact with blood, semen, and other body fluids of an infected person.

The guidance now recommends using the triple panel (HBsAg, anti-HBs, total anti-HBc) for initial screening.

“It can help identify persons who have an active HBV infection and could be linked to care; have resolved infection and might be susceptible to reactivation (for example, immunosuppressed persons); are susceptible and need vaccination; or are vaccinated,” the authors wrote.

Patients with previous HBV infection can have the infection reactivated with immunosuppressive treatments, Dr. Lee said, which is why detecting prior infection via the triple panel screening is important.

Women who are pregnant should be screened, ideally, in the first trimester of each pregnancy, regardless of vaccination status or testing history. If they have already received timely triple panel screening for hepatitis B and have no new HBV exposures, pregnant women only need HBsAg screening, the guidelines state.

The guidelines also specify that higher risk groups, specifically those incarcerated or formerly incarcerated, adults with current or past hepatitis C virus infection, and those with current or past sexually transmitted infections and multiple sex partners.

People who are susceptible for infection, refuse vaccination and are at higher risk for HBV should be screened periodically, but how often they should be screened should be based on shared decision-making between the provider and patient as well as individual risk and immune status.

Additional research into the optimal frequency of periodic testing is necessary, the authors say.

“Along with vaccination strategies, universal screening of adults and appropriate testing of persons at increased risk for HBV infection will improve health outcomes, reduce the prevalence of HBV infection in the United States, and advance viral hepatitis elimination goals,” the authors wrote.

The new recommendations now contrast with the 2020 screening guidelines issued by the U.S. Preventive Services Task Force (USPSTF) that recommend risk-based screening for hepatitis B.

“When that recommendation was published, the Task Force was aligned with several other organizations, including the CDC, in supporting screening for hepatitis B in high-risk populations — and importantly, we’re all still aligned in making sure that people get the care that they need,” said Michael Barry, MD, chair of the USPSTF, in an emailed statement. “The evidence on clinical preventive services is always changing, and the Task Force aims to keep all recommendations current, updating each recommendation approximately every 5 years.”

“In the meantime, we always encourage clinicians to use their judgment as they provide care for their patients — including those who may benefit from screening for hepatitis B — and to decide together with each patient which preventive services can best help them live a long and healthy life,” Dr. Barry said.

The American Association for the Study of Liver Diseases is currently updating their HBV screening recommendations, Dr. Lee said, and he expects other professional societies to follow the CDC recommendations.

“It’s not uncommon that we see the CDC or societies making recommendations and the USPSTF following along, so hopefully that’s the case for hepatitis B as well,” he said.

The authors reported no potential conflicts of interest.

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

All adults should be tested for hepatitis B virus (HBV) at least once in their lifetime, according to updated guidelines from the Centers for Disease Control and Prevention.

This is the first update to HBV screening guidelines since 2008, the agency said.

“Risk-based testing alone has not identified most persons living with chronic HBV infection and is considered inefficient for providers to implement,” the authors wrote in the new guidance, published in the CDC’s Morbidity and Mortality Weekly Report. “Universal screening of adults for HBV infection is cost-effective, compared with risk-based screening and averts liver disease and death. Although a curative treatment is not yet available, early diagnosis and treatment of chronic HBV infections reduces the risk for cirrhosis, liver cancer, and death.”

Howard Lee, MD, an assistant professor in the section of gastroenterology and hepatology at Baylor College of Medicine in Houston, agreed that risk-based screening has not been effective. A universal screening approach “is the way to go,” he said. With this new screening approach, patients can get tested without having to admit that they may be at risk for a chronic disease like HIV and HBV, which can be stigmatizing, said Dr. Lee, who was not involved with making these recommendations.

An estimated 580,000 to 2.4 million individuals are living with HBV infection in the United States, and two-thirds may be unaware they are infected, according to the CDC. The virus spreads through contact with blood, semen, and other body fluids of an infected person.

The guidance now recommends using the triple panel (HBsAg, anti-HBs, total anti-HBc) for initial screening.

“It can help identify persons who have an active HBV infection and could be linked to care; have resolved infection and might be susceptible to reactivation (for example, immunosuppressed persons); are susceptible and need vaccination; or are vaccinated,” the authors wrote.

Patients with previous HBV infection can have the infection reactivated with immunosuppressive treatments, Dr. Lee said, which is why detecting prior infection via the triple panel screening is important.

Women who are pregnant should be screened, ideally, in the first trimester of each pregnancy, regardless of vaccination status or testing history. If they have already received timely triple panel screening for hepatitis B and have no new HBV exposures, pregnant women only need HBsAg screening, the guidelines state.

The guidelines also specify that higher risk groups, specifically those incarcerated or formerly incarcerated, adults with current or past hepatitis C virus infection, and those with current or past sexually transmitted infections and multiple sex partners.

People who are susceptible for infection, refuse vaccination and are at higher risk for HBV should be screened periodically, but how often they should be screened should be based on shared decision-making between the provider and patient as well as individual risk and immune status.

Additional research into the optimal frequency of periodic testing is necessary, the authors say.

“Along with vaccination strategies, universal screening of adults and appropriate testing of persons at increased risk for HBV infection will improve health outcomes, reduce the prevalence of HBV infection in the United States, and advance viral hepatitis elimination goals,” the authors wrote.

The new recommendations now contrast with the 2020 screening guidelines issued by the U.S. Preventive Services Task Force (USPSTF) that recommend risk-based screening for hepatitis B.

“When that recommendation was published, the Task Force was aligned with several other organizations, including the CDC, in supporting screening for hepatitis B in high-risk populations — and importantly, we’re all still aligned in making sure that people get the care that they need,” said Michael Barry, MD, chair of the USPSTF, in an emailed statement. “The evidence on clinical preventive services is always changing, and the Task Force aims to keep all recommendations current, updating each recommendation approximately every 5 years.”

“In the meantime, we always encourage clinicians to use their judgment as they provide care for their patients — including those who may benefit from screening for hepatitis B — and to decide together with each patient which preventive services can best help them live a long and healthy life,” Dr. Barry said.

The American Association for the Study of Liver Diseases is currently updating their HBV screening recommendations, Dr. Lee said, and he expects other professional societies to follow the CDC recommendations.

“It’s not uncommon that we see the CDC or societies making recommendations and the USPSTF following along, so hopefully that’s the case for hepatitis B as well,” he said.

The authors reported no potential conflicts of interest.

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

All adults should be tested for hepatitis B virus (HBV) at least once in their lifetime, according to updated guidelines from the Centers for Disease Control and Prevention.

This is the first update to HBV screening guidelines since 2008, the agency said.

“Risk-based testing alone has not identified most persons living with chronic HBV infection and is considered inefficient for providers to implement,” the authors wrote in the new guidance, published in the CDC’s Morbidity and Mortality Weekly Report. “Universal screening of adults for HBV infection is cost-effective, compared with risk-based screening and averts liver disease and death. Although a curative treatment is not yet available, early diagnosis and treatment of chronic HBV infections reduces the risk for cirrhosis, liver cancer, and death.”

Howard Lee, MD, an assistant professor in the section of gastroenterology and hepatology at Baylor College of Medicine in Houston, agreed that risk-based screening has not been effective. A universal screening approach “is the way to go,” he said. With this new screening approach, patients can get tested without having to admit that they may be at risk for a chronic disease like HIV and HBV, which can be stigmatizing, said Dr. Lee, who was not involved with making these recommendations.

An estimated 580,000 to 2.4 million individuals are living with HBV infection in the United States, and two-thirds may be unaware they are infected, according to the CDC. The virus spreads through contact with blood, semen, and other body fluids of an infected person.

The guidance now recommends using the triple panel (HBsAg, anti-HBs, total anti-HBc) for initial screening.

“It can help identify persons who have an active HBV infection and could be linked to care; have resolved infection and might be susceptible to reactivation (for example, immunosuppressed persons); are susceptible and need vaccination; or are vaccinated,” the authors wrote.

Patients with previous HBV infection can have the infection reactivated with immunosuppressive treatments, Dr. Lee said, which is why detecting prior infection via the triple panel screening is important.

Women who are pregnant should be screened, ideally, in the first trimester of each pregnancy, regardless of vaccination status or testing history. If they have already received timely triple panel screening for hepatitis B and have no new HBV exposures, pregnant women only need HBsAg screening, the guidelines state.

The guidelines also specify that higher risk groups, specifically those incarcerated or formerly incarcerated, adults with current or past hepatitis C virus infection, and those with current or past sexually transmitted infections and multiple sex partners.

People who are susceptible for infection, refuse vaccination and are at higher risk for HBV should be screened periodically, but how often they should be screened should be based on shared decision-making between the provider and patient as well as individual risk and immune status.

Additional research into the optimal frequency of periodic testing is necessary, the authors say.

“Along with vaccination strategies, universal screening of adults and appropriate testing of persons at increased risk for HBV infection will improve health outcomes, reduce the prevalence of HBV infection in the United States, and advance viral hepatitis elimination goals,” the authors wrote.

The new recommendations now contrast with the 2020 screening guidelines issued by the U.S. Preventive Services Task Force (USPSTF) that recommend risk-based screening for hepatitis B.

“When that recommendation was published, the Task Force was aligned with several other organizations, including the CDC, in supporting screening for hepatitis B in high-risk populations — and importantly, we’re all still aligned in making sure that people get the care that they need,” said Michael Barry, MD, chair of the USPSTF, in an emailed statement. “The evidence on clinical preventive services is always changing, and the Task Force aims to keep all recommendations current, updating each recommendation approximately every 5 years.”

“In the meantime, we always encourage clinicians to use their judgment as they provide care for their patients — including those who may benefit from screening for hepatitis B — and to decide together with each patient which preventive services can best help them live a long and healthy life,” Dr. Barry said.

The American Association for the Study of Liver Diseases is currently updating their HBV screening recommendations, Dr. Lee said, and he expects other professional societies to follow the CDC recommendations.

“It’s not uncommon that we see the CDC or societies making recommendations and the USPSTF following along, so hopefully that’s the case for hepatitis B as well,” he said.

The authors reported no potential conflicts of interest.

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

Infants born to women infected with the hepatitis C virus (HCV) faced twice the risk of stays in the neonatal ICU (NICU) and 2.7 times the risk of low birth weight, a new analysis finds, even when researchers adjusted their data to control for injectable drug use and maternal medical comorbidity.

Clinicians should be “aware that the infants of pregnant people with HCV may have a high rate of need for higher-level pediatric care,” said Brenna L. Hughes, MD, MSc, chief of maternal fetal medicine at Duke University Medical Center, Durham, N.C. She spoke in an interview about the findings, which were presented at the meeting sponsored by the Society for Maternal-Fetal Medicine.

As Dr. Hughes noted, “HCV remains a serious problem in pregnancy because it often goes undiagnosed and/or untreated prior to pregnancy. It can be passed to infants, and this can cause significant health-related outcomes for children as they age.”

For the multicenter U.S. study, researchers identified 249 pregnant mothers with HCV from a 2012-2018 cohort and matched them by gestational age to controls (n = 486). The average age was 28; 71.1% of the cases were non-Hispanic White versus 41.6% of the controls; 8.4% of cases were non-Hispanic Black versus 32.1% of controls (P < .001 for race/ethnicity analysis); and 73% of cases were smokers versus 18% of controls (P < .001). More than 19% of cases reported injectable drug use during pregnancy versus 0.2% of controls (P < .001).

The researchers adjusted their findings for maternal age, body mass index, injectable drug use, and maternal comorbidity.

An earlier analysis of the study data found that 6% of pregnant women with HCV passed it on to their infants, especially those with high levels of virus in their systems. For the new study, researchers focused on various outcomes to test the assumption that “adverse pregnancy outcomes associated with HCV are related to prematurity or to ongoing use of injection drugs,” Dr. Hughes said.

There was no increase in rates of preterm birth or adverse maternal outcomes in the HCV cases. However, infants born to women with HCV were more likely than the controls to require a stay in the NICU (45% vs. 19%; adjusted relative risk, 1.99; 95% confidence interval, 1.54-2.58). They were also more likely to have lower birth weights (small for gestational age < 5th percentile) (10.6% vs. 3.1%; ARR, 2.72; 95% CI, 1.38-5.34).

No difference in outcomes was seen when HCV cases with viremia (33%) were excluded.

“The most surprising finding was that the need for higher-level pediatric care was so high even though there wasn’t an increased risk of prematurity,” Dr. Hughes said.

She added it’s not clear why NICU stays and low birth weights were more common in infants of women with HCV. “It is possible that the higher risk of need for higher-level pediatric care was related to a need for observation or treatment due to use of opioid replacement therapies with opioid agonists.” As for lower birth weight, “there may be other unmeasured risk factors.”

Tatyana Kushner, MD, MSCE, of the division of liver diseases at Icahn School of Medicine at Mount Sinai, New York, said in an interview that the study adds to limited data about HCV in pregnancy. “These findings have been demonstrated in prior studies, and it would be important to tease apart whether [low birth weight] is related to the virus itself or more related to other confounding associated factors such as maternal substance use as well as other associated social determinants of health among women with HCV.”

As for the study’s message, Dr. Kushner said it makes it clear that “hepatitis C adversely impacts outcomes of pregnancy and it is important to identify women of childbearing age for treatment early, ideally prior to pregnancy, in order to improve their pregnancy outcomes. In addition, treatment of hepatitis C during pregnancy should be explored further to determine if treatment during pregnancy can improve outcomes.”

At the moment, she said, “there are ongoing studies to delineate the safety and efficacy of hepatitis C treatment during pregnancy. Given that we are screening for hepatitis C during pregnancy, we need clear recommendations on the use of direct-acting antivirals in people who screen positive.”

The study was funded by the National Institute of Child Health and Human Development. The authors have no disclosures. Dr. Kushner disclosed research support (Gilead) and advisory board service (Gilead, AbbVie, Bausch, GlaxoSmithKline, and Eiger).

Infants born to women infected with the hepatitis C virus (HCV) faced twice the risk of stays in the neonatal ICU (NICU) and 2.7 times the risk of low birth weight, a new analysis finds, even when researchers adjusted their data to control for injectable drug use and maternal medical comorbidity.

Clinicians should be “aware that the infants of pregnant people with HCV may have a high rate of need for higher-level pediatric care,” said Brenna L. Hughes, MD, MSc, chief of maternal fetal medicine at Duke University Medical Center, Durham, N.C. She spoke in an interview about the findings, which were presented at the meeting sponsored by the Society for Maternal-Fetal Medicine.

As Dr. Hughes noted, “HCV remains a serious problem in pregnancy because it often goes undiagnosed and/or untreated prior to pregnancy. It can be passed to infants, and this can cause significant health-related outcomes for children as they age.”

For the multicenter U.S. study, researchers identified 249 pregnant mothers with HCV from a 2012-2018 cohort and matched them by gestational age to controls (n = 486). The average age was 28; 71.1% of the cases were non-Hispanic White versus 41.6% of the controls; 8.4% of cases were non-Hispanic Black versus 32.1% of controls (P < .001 for race/ethnicity analysis); and 73% of cases were smokers versus 18% of controls (P < .001). More than 19% of cases reported injectable drug use during pregnancy versus 0.2% of controls (P < .001).

The researchers adjusted their findings for maternal age, body mass index, injectable drug use, and maternal comorbidity.

An earlier analysis of the study data found that 6% of pregnant women with HCV passed it on to their infants, especially those with high levels of virus in their systems. For the new study, researchers focused on various outcomes to test the assumption that “adverse pregnancy outcomes associated with HCV are related to prematurity or to ongoing use of injection drugs,” Dr. Hughes said.

There was no increase in rates of preterm birth or adverse maternal outcomes in the HCV cases. However, infants born to women with HCV were more likely than the controls to require a stay in the NICU (45% vs. 19%; adjusted relative risk, 1.99; 95% confidence interval, 1.54-2.58). They were also more likely to have lower birth weights (small for gestational age < 5th percentile) (10.6% vs. 3.1%; ARR, 2.72; 95% CI, 1.38-5.34).

No difference in outcomes was seen when HCV cases with viremia (33%) were excluded.

“The most surprising finding was that the need for higher-level pediatric care was so high even though there wasn’t an increased risk of prematurity,” Dr. Hughes said.

She added it’s not clear why NICU stays and low birth weights were more common in infants of women with HCV. “It is possible that the higher risk of need for higher-level pediatric care was related to a need for observation or treatment due to use of opioid replacement therapies with opioid agonists.” As for lower birth weight, “there may be other unmeasured risk factors.”

Tatyana Kushner, MD, MSCE, of the division of liver diseases at Icahn School of Medicine at Mount Sinai, New York, said in an interview that the study adds to limited data about HCV in pregnancy. “These findings have been demonstrated in prior studies, and it would be important to tease apart whether [low birth weight] is related to the virus itself or more related to other confounding associated factors such as maternal substance use as well as other associated social determinants of health among women with HCV.”

As for the study’s message, Dr. Kushner said it makes it clear that “hepatitis C adversely impacts outcomes of pregnancy and it is important to identify women of childbearing age for treatment early, ideally prior to pregnancy, in order to improve their pregnancy outcomes. In addition, treatment of hepatitis C during pregnancy should be explored further to determine if treatment during pregnancy can improve outcomes.”

At the moment, she said, “there are ongoing studies to delineate the safety and efficacy of hepatitis C treatment during pregnancy. Given that we are screening for hepatitis C during pregnancy, we need clear recommendations on the use of direct-acting antivirals in people who screen positive.”

The study was funded by the National Institute of Child Health and Human Development. The authors have no disclosures. Dr. Kushner disclosed research support (Gilead) and advisory board service (Gilead, AbbVie, Bausch, GlaxoSmithKline, and Eiger).

Infants born to women infected with the hepatitis C virus (HCV) faced twice the risk of stays in the neonatal ICU (NICU) and 2.7 times the risk of low birth weight, a new analysis finds, even when researchers adjusted their data to control for injectable drug use and maternal medical comorbidity.

Clinicians should be “aware that the infants of pregnant people with HCV may have a high rate of need for higher-level pediatric care,” said Brenna L. Hughes, MD, MSc, chief of maternal fetal medicine at Duke University Medical Center, Durham, N.C. She spoke in an interview about the findings, which were presented at the meeting sponsored by the Society for Maternal-Fetal Medicine.

As Dr. Hughes noted, “HCV remains a serious problem in pregnancy because it often goes undiagnosed and/or untreated prior to pregnancy. It can be passed to infants, and this can cause significant health-related outcomes for children as they age.”

For the multicenter U.S. study, researchers identified 249 pregnant mothers with HCV from a 2012-2018 cohort and matched them by gestational age to controls (n = 486). The average age was 28; 71.1% of the cases were non-Hispanic White versus 41.6% of the controls; 8.4% of cases were non-Hispanic Black versus 32.1% of controls (P < .001 for race/ethnicity analysis); and 73% of cases were smokers versus 18% of controls (P < .001). More than 19% of cases reported injectable drug use during pregnancy versus 0.2% of controls (P < .001).

The researchers adjusted their findings for maternal age, body mass index, injectable drug use, and maternal comorbidity.

An earlier analysis of the study data found that 6% of pregnant women with HCV passed it on to their infants, especially those with high levels of virus in their systems. For the new study, researchers focused on various outcomes to test the assumption that “adverse pregnancy outcomes associated with HCV are related to prematurity or to ongoing use of injection drugs,” Dr. Hughes said.

There was no increase in rates of preterm birth or adverse maternal outcomes in the HCV cases. However, infants born to women with HCV were more likely than the controls to require a stay in the NICU (45% vs. 19%; adjusted relative risk, 1.99; 95% confidence interval, 1.54-2.58). They were also more likely to have lower birth weights (small for gestational age < 5th percentile) (10.6% vs. 3.1%; ARR, 2.72; 95% CI, 1.38-5.34).

No difference in outcomes was seen when HCV cases with viremia (33%) were excluded.

“The most surprising finding was that the need for higher-level pediatric care was so high even though there wasn’t an increased risk of prematurity,” Dr. Hughes said.

She added it’s not clear why NICU stays and low birth weights were more common in infants of women with HCV. “It is possible that the higher risk of need for higher-level pediatric care was related to a need for observation or treatment due to use of opioid replacement therapies with opioid agonists.” As for lower birth weight, “there may be other unmeasured risk factors.”

Tatyana Kushner, MD, MSCE, of the division of liver diseases at Icahn School of Medicine at Mount Sinai, New York, said in an interview that the study adds to limited data about HCV in pregnancy. “These findings have been demonstrated in prior studies, and it would be important to tease apart whether [low birth weight] is related to the virus itself or more related to other confounding associated factors such as maternal substance use as well as other associated social determinants of health among women with HCV.”

As for the study’s message, Dr. Kushner said it makes it clear that “hepatitis C adversely impacts outcomes of pregnancy and it is important to identify women of childbearing age for treatment early, ideally prior to pregnancy, in order to improve their pregnancy outcomes. In addition, treatment of hepatitis C during pregnancy should be explored further to determine if treatment during pregnancy can improve outcomes.”

At the moment, she said, “there are ongoing studies to delineate the safety and efficacy of hepatitis C treatment during pregnancy. Given that we are screening for hepatitis C during pregnancy, we need clear recommendations on the use of direct-acting antivirals in people who screen positive.”

The study was funded by the National Institute of Child Health and Human Development. The authors have no disclosures. Dr. Kushner disclosed research support (Gilead) and advisory board service (Gilead, AbbVie, Bausch, GlaxoSmithKline, and Eiger).