User login
No one planning holiday gatherings or travel wants to hear this, but the rise of a new COVID-19 variant, JN.1, is concerning experts, who say it may threaten those good times.
The good news is recent research suggests the 2023-2024 COVID-19 vaccine appears to work against this newest variant. But so few people have gotten the latest vaccine — less than 16% of U.S. adults — that some experts suggest it’s time for the CDC to urge the public who haven’t it to do so now, so the antibodies can kick in before the festivities.
“A significant wave [of JN.1] has started here and could be blunted with a high booster rate and mitigation measures,” said Eric Topol, MD, professor and executive vice president of Scripps Research in La Jolla, CA, and editor-in-chief of Medscape, a sister site of this news organization.
COVID metrics, meanwhile, have started to climb again. Nearly 10,000 people were hospitalized for COVID in the U.S. for the week ending Nov. 25, the CDC said, a 10% increase over the previous week.
Who’s Who in the Family Tree
JN.1, an Omicron subvariant, was first detected in the U.S. in September and is termed “a notable descendent lineage” of Omicron subvariant BA.2.86 by the World Health Organization. When BA.2.86, also known as Pirola, was first identified in August, it appeared very different from other variants, the CDC said. That triggered concerns it might be more infectious than previous ones, even for people with immunity from vaccination and previous infections.
“JN.1 is Pirola’s kid,” said Rajendram Rajnarayanan, PhD, assistant dean of research and associate professor at the New York Institute of Technology at Arkansas State University, who maintains a COVID-19 variant database. The variant BA.2.86 and offspring are worrisome due to the mutations, he said.
How Widespread Is JN.1?
As of Nov. 27, the CDC says, BA.2.86 is projected to comprise 5%-15% of circulating variants in the U.S. “The expected public health risk of this variant, including its offshoot JN.1, is low,” the agency said.
Currently, JN.1 is reported more often in Europe, Dr. Rajnarayanan said, but some countries have better reporting data than others. “It has probably spread to every country tracking COVID,’’ he said, due to the mutations in the spike protein that make it easier for it to bind and infect.
Wastewater data suggest the variant’s rise is helping to fuel a wave, Dr. Topol said.
Vaccine Effectiveness Against JN.1, Other New Variants
The new XBB.1.5 monovalent vaccine, protects against XBB.1.5, another Omicron subvariant, but also JN.1 and other “emergent” viruses, a team of researchers reported Nov. 26 in a study on bioRxiv that has not yet been certified by peer review.
The updated vaccine, when given to uninfected people, boosted antibodies about 27-fold against XBB.1.5 and about 13- to 27-fold against JN.1 and other emergent viruses, the researchers reported.
While even primary doses of the COVID vaccine will likely help protect against the new JN.1 subvariant, “if you got the XBB.1.5 booster, it is going to be protecting you better against this new variant,” Dr. Rajnarayanan said.
2023-2024 Vaccine Uptake Low
In November, the CDC posted the first detailed estimates of who did. As of Nov. 18, less than 16% of U.S. adults had, with nearly 15% saying they planned to get it.
Coverage among children is lower, with just 6.3% of children up to date on the newest vaccine and 19% of parents saying they planned to get the 2023-2024 vaccine for their children.
Predictions, Mitigation
While some experts say a peak due to JN.1 is expected in the weeks ahead, Dr. Topol said it’s impossible to predict exactly how JN.1 will play out.
“It’s not going to be a repeat of November 2021,” when Omicron surfaced, Dr. Rajnarayanan predicted. Within 4 weeks of the World Health Organization declaring Omicron as a virus of concern, it spread around the world.
Mitigation measures can help, Dr. Rajnarayanan said. He suggested:
Get the new vaccine, and especially encourage vulnerable family and friends to do so.
If you are gathering inside for holiday festivities, improve circulation in the house, if possible.
Wear masks in airports and on planes and other public transportation.
A version of this article appeared on WebMD.com.
No one planning holiday gatherings or travel wants to hear this, but the rise of a new COVID-19 variant, JN.1, is concerning experts, who say it may threaten those good times.
The good news is recent research suggests the 2023-2024 COVID-19 vaccine appears to work against this newest variant. But so few people have gotten the latest vaccine — less than 16% of U.S. adults — that some experts suggest it’s time for the CDC to urge the public who haven’t it to do so now, so the antibodies can kick in before the festivities.
“A significant wave [of JN.1] has started here and could be blunted with a high booster rate and mitigation measures,” said Eric Topol, MD, professor and executive vice president of Scripps Research in La Jolla, CA, and editor-in-chief of Medscape, a sister site of this news organization.
COVID metrics, meanwhile, have started to climb again. Nearly 10,000 people were hospitalized for COVID in the U.S. for the week ending Nov. 25, the CDC said, a 10% increase over the previous week.
Who’s Who in the Family Tree
JN.1, an Omicron subvariant, was first detected in the U.S. in September and is termed “a notable descendent lineage” of Omicron subvariant BA.2.86 by the World Health Organization. When BA.2.86, also known as Pirola, was first identified in August, it appeared very different from other variants, the CDC said. That triggered concerns it might be more infectious than previous ones, even for people with immunity from vaccination and previous infections.
“JN.1 is Pirola’s kid,” said Rajendram Rajnarayanan, PhD, assistant dean of research and associate professor at the New York Institute of Technology at Arkansas State University, who maintains a COVID-19 variant database. The variant BA.2.86 and offspring are worrisome due to the mutations, he said.
How Widespread Is JN.1?
As of Nov. 27, the CDC says, BA.2.86 is projected to comprise 5%-15% of circulating variants in the U.S. “The expected public health risk of this variant, including its offshoot JN.1, is low,” the agency said.
Currently, JN.1 is reported more often in Europe, Dr. Rajnarayanan said, but some countries have better reporting data than others. “It has probably spread to every country tracking COVID,’’ he said, due to the mutations in the spike protein that make it easier for it to bind and infect.
Wastewater data suggest the variant’s rise is helping to fuel a wave, Dr. Topol said.
Vaccine Effectiveness Against JN.1, Other New Variants
The new XBB.1.5 monovalent vaccine, protects against XBB.1.5, another Omicron subvariant, but also JN.1 and other “emergent” viruses, a team of researchers reported Nov. 26 in a study on bioRxiv that has not yet been certified by peer review.
The updated vaccine, when given to uninfected people, boosted antibodies about 27-fold against XBB.1.5 and about 13- to 27-fold against JN.1 and other emergent viruses, the researchers reported.
While even primary doses of the COVID vaccine will likely help protect against the new JN.1 subvariant, “if you got the XBB.1.5 booster, it is going to be protecting you better against this new variant,” Dr. Rajnarayanan said.
2023-2024 Vaccine Uptake Low
In November, the CDC posted the first detailed estimates of who did. As of Nov. 18, less than 16% of U.S. adults had, with nearly 15% saying they planned to get it.
Coverage among children is lower, with just 6.3% of children up to date on the newest vaccine and 19% of parents saying they planned to get the 2023-2024 vaccine for their children.
Predictions, Mitigation
While some experts say a peak due to JN.1 is expected in the weeks ahead, Dr. Topol said it’s impossible to predict exactly how JN.1 will play out.
“It’s not going to be a repeat of November 2021,” when Omicron surfaced, Dr. Rajnarayanan predicted. Within 4 weeks of the World Health Organization declaring Omicron as a virus of concern, it spread around the world.
Mitigation measures can help, Dr. Rajnarayanan said. He suggested:
Get the new vaccine, and especially encourage vulnerable family and friends to do so.
If you are gathering inside for holiday festivities, improve circulation in the house, if possible.
Wear masks in airports and on planes and other public transportation.
A version of this article appeared on WebMD.com.
No one planning holiday gatherings or travel wants to hear this, but the rise of a new COVID-19 variant, JN.1, is concerning experts, who say it may threaten those good times.
The good news is recent research suggests the 2023-2024 COVID-19 vaccine appears to work against this newest variant. But so few people have gotten the latest vaccine — less than 16% of U.S. adults — that some experts suggest it’s time for the CDC to urge the public who haven’t it to do so now, so the antibodies can kick in before the festivities.
“A significant wave [of JN.1] has started here and could be blunted with a high booster rate and mitigation measures,” said Eric Topol, MD, professor and executive vice president of Scripps Research in La Jolla, CA, and editor-in-chief of Medscape, a sister site of this news organization.
COVID metrics, meanwhile, have started to climb again. Nearly 10,000 people were hospitalized for COVID in the U.S. for the week ending Nov. 25, the CDC said, a 10% increase over the previous week.
Who’s Who in the Family Tree
JN.1, an Omicron subvariant, was first detected in the U.S. in September and is termed “a notable descendent lineage” of Omicron subvariant BA.2.86 by the World Health Organization. When BA.2.86, also known as Pirola, was first identified in August, it appeared very different from other variants, the CDC said. That triggered concerns it might be more infectious than previous ones, even for people with immunity from vaccination and previous infections.
“JN.1 is Pirola’s kid,” said Rajendram Rajnarayanan, PhD, assistant dean of research and associate professor at the New York Institute of Technology at Arkansas State University, who maintains a COVID-19 variant database. The variant BA.2.86 and offspring are worrisome due to the mutations, he said.
How Widespread Is JN.1?
As of Nov. 27, the CDC says, BA.2.86 is projected to comprise 5%-15% of circulating variants in the U.S. “The expected public health risk of this variant, including its offshoot JN.1, is low,” the agency said.
Currently, JN.1 is reported more often in Europe, Dr. Rajnarayanan said, but some countries have better reporting data than others. “It has probably spread to every country tracking COVID,’’ he said, due to the mutations in the spike protein that make it easier for it to bind and infect.
Wastewater data suggest the variant’s rise is helping to fuel a wave, Dr. Topol said.
Vaccine Effectiveness Against JN.1, Other New Variants
The new XBB.1.5 monovalent vaccine, protects against XBB.1.5, another Omicron subvariant, but also JN.1 and other “emergent” viruses, a team of researchers reported Nov. 26 in a study on bioRxiv that has not yet been certified by peer review.
The updated vaccine, when given to uninfected people, boosted antibodies about 27-fold against XBB.1.5 and about 13- to 27-fold against JN.1 and other emergent viruses, the researchers reported.
While even primary doses of the COVID vaccine will likely help protect against the new JN.1 subvariant, “if you got the XBB.1.5 booster, it is going to be protecting you better against this new variant,” Dr. Rajnarayanan said.
2023-2024 Vaccine Uptake Low
In November, the CDC posted the first detailed estimates of who did. As of Nov. 18, less than 16% of U.S. adults had, with nearly 15% saying they planned to get it.
Coverage among children is lower, with just 6.3% of children up to date on the newest vaccine and 19% of parents saying they planned to get the 2023-2024 vaccine for their children.
Predictions, Mitigation
While some experts say a peak due to JN.1 is expected in the weeks ahead, Dr. Topol said it’s impossible to predict exactly how JN.1 will play out.
“It’s not going to be a repeat of November 2021,” when Omicron surfaced, Dr. Rajnarayanan predicted. Within 4 weeks of the World Health Organization declaring Omicron as a virus of concern, it spread around the world.
Mitigation measures can help, Dr. Rajnarayanan said. He suggested:
Get the new vaccine, and especially encourage vulnerable family and friends to do so.
If you are gathering inside for holiday festivities, improve circulation in the house, if possible.
Wear masks in airports and on planes and other public transportation.
A version of this article appeared on WebMD.com.
<!--$RCSfile: InCopy_agile.xsl,v $ $Revision: 1.35 $-->
<!--$RCSfile: drupal.xsl,v $ $Revision: 1.7 $-->
<root generator="drupal.xsl" gversion="1.7"> <header> <fileName>166243</fileName> <TBEID>0C04D9F4.SIG</TBEID> <TBUniqueIdentifier>MD_0C04D9F4</TBUniqueIdentifier> <newsOrJournal>News</newsOrJournal> <publisherName>Frontline Medical Communications</publisherName> <storyname/> <articleType>2</articleType> <TBLocation>QC Done-All Pubs</TBLocation> <QCDate>20231208T131233</QCDate> <firstPublished>20231208T153029</firstPublished> <LastPublished>20231208T153029</LastPublished> <pubStatus qcode="stat:"/> <embargoDate/> <killDate/> <CMSDate>20231208T153029</CMSDate> <articleSource/> <facebookInfo/> <meetingNumber/> <byline>Kathleen Doheny</byline> <bylineText>BY KATHLEEN DOHENY</bylineText> <bylineFull>BY KATHLEEN DOHENY</bylineFull> <bylineTitleText/> <USOrGlobal/> <wireDocType/> <newsDocType/> <journalDocType/> <linkLabel/> <pageRange/> <citation/> <quizID/> <indexIssueDate/> <itemClass qcode="ninat:text"/> <provider qcode="provider:imng"> <name>IMNG Medical Media</name> <rightsInfo> <copyrightHolder> <name>Frontline Medical News</name> </copyrightHolder> <copyrightNotice>Copyright (c) 2015 Frontline Medical News, a Frontline Medical Communications Inc. company. All rights reserved. This material may not be published, broadcast, copied, or otherwise reproduced or distributed without the prior written permission of Frontline Medical Communications Inc.</copyrightNotice> </rightsInfo> </provider> <abstract/> <metaDescription>No one planning holiday gatherings or travel wants to hear this, but the rise of a new COVID-19 variant, JN.1, is concerning experts, who say it may threaten th</metaDescription> <articlePDF/> <teaserImage/> <teaser>Nearly 10,000 people were hospitalized for COVID in the U.S. for the week ending Nov. 25, <span class="Hyperlink">the CDC s</span>aid, a 10% increase over the previous week.</teaser> <title>New COVID Variant JN.1 Could Disrupt Holiday Plans</title> <deck/> <disclaimer/> <AuthorList/> <articleURL/> <doi/> <pubMedID/> <publishXMLStatus/> <publishXMLVersion>1</publishXMLVersion> <useEISSN>0</useEISSN> <urgency/> <pubPubdateYear/> <pubPubdateMonth/> <pubPubdateDay/> <pubVolume/> <pubNumber/> <wireChannels/> <primaryCMSID/> <CMSIDs/> <keywords/> <seeAlsos/> <publications_g> <publicationData> <publicationCode>icymicov</publicationCode> <pubIssueName/> <pubArticleType/> <pubTopics/> <pubCategories/> <pubSections/> </publicationData> <publicationData> <publicationCode>fp</publicationCode> <pubIssueName/> <pubArticleType/> <pubTopics/> <pubCategories/> <pubSections/> </publicationData> <publicationData> <publicationCode>idprac</publicationCode> <pubIssueName/> <pubArticleType/> <pubTopics/> <pubCategories/> <pubSections/> </publicationData> <publicationData> <publicationCode>pn</publicationCode> <pubIssueName/> <pubArticleType/> <pubTopics/> <pubCategories/> <pubSections/> </publicationData> <publicationData> <publicationCode>im</publicationCode> <pubIssueName/> <pubArticleType/> <pubTopics/> <pubCategories/> <pubSections/> </publicationData> </publications_g> <publications> <term>69586</term> <term>15</term> <term canonical="true">20</term> <term>25</term> <term>21</term> </publications> <sections> <term>26933</term> <term canonical="true">39313</term> </sections> <topics> <term canonical="true">63993</term> <term>284</term> <term>234</term> <term>50347</term> </topics> <links/> </header> <itemSet> <newsItem> <itemMeta> <itemRole>Main</itemRole> <itemClass>text</itemClass> <title>New COVID Variant JN.1 Could Disrupt Holiday Plans</title> <deck/> </itemMeta> <itemContent> <p>No one planning holiday gatherings or travel wants to hear this, but the rise of a new <span class="Hyperlink"><a href="https://www.webmd.com/covid/coronavirus">COVID-19</a></span> variant, JN.1, is concerning experts, who say it may threaten those good times. <br/><br/>The good news is recent research suggests the 2023-2024 COVID-19 vaccine appears to work against this newest variant. But so few people have gotten the latest vaccine — less than 16% of U.S. adults — that some experts suggest it’s time for the CDC to urge the public who haven’t it to do so now, so the antibodies can kick in before the festivities.<br/><br/>“A significant wave [of JN.1] has started here and could be blunted with a high booster rate and mitigation measures,” said Eric Topol, MD, professor and executive vice president of Scripps Research in La Jolla, CA, and editor-in-chief of Medscape, a sister site of this news organization.<br/><br/>COVID metrics, meanwhile, have started to climb again. Nearly 10,000 people were hospitalized for COVID in the U.S. for the week ending Nov. 25, <span class="Hyperlink">the CDC said</span>, a 10% increase over the previous week. <br/><br/></p> <h2>Who’s Who in the Family Tree</h2> <p>JN.1, an Omicron subvariant, was first detected in the U.S. in September and is termed “a notable descendent lineage” of Omicron subvariant BA.2.86 by the <span class="Hyperlink"><a href="https://www.who.int/docs/default-source/coronaviruse/21112023_ba.2.86_ire.pdf">World Health Organization.</a></span> When BA.2.86, also known as Pirola, was first identified in August, it appeared very different from other variants, the CDC said. That triggered concerns it might be more infectious than previous ones, even for people with immunity from vaccination and previous infections. <br/><br/>“JN.1 is Pirola’s kid,” said Rajendram Rajnarayanan, PhD, assistant dean of research and associate professor at the New York Institute of Technology at Arkansas State University, who maintains a COVID-19 variant database. The variant BA.2.86 and offspring are worrisome due to the mutations, he said.<br/><br/></p> <h2>How Widespread Is JN.1?</h2> <p>As of Nov. 27, the CDC says, BA.2.86 is projected to comprise <span class="Hyperlink">5%-15%</span> of circulating variants in the U.S. “The expected public health risk of this variant, including its offshoot JN.1, is low,” the agency said.<br/><br/>Currently, JN.1 is reported more often in Europe, Dr. Rajnarayanan said, but some countries have better reporting data than others. “It has probably spread to every country tracking COVID,’’ he said, due to the mutations in the spike protein that make it easier for it to bind and infect.<br/><br/>Wastewater data suggest the variant’s rise is helping to fuel a wave, Dr. Topol said. <br/><br/></p> <h2>Vaccine Effectiveness Against JN.1, Other New Variants </h2> <p>The new XBB.1.5 monovalent vaccine, <span class="Hyperlink"><a href="https://www.biorxiv.org/content/10.1101/2023.11.26.568730v1">protects against</a></span> XBB.1.5, another Omicron subvariant, but also JN.1 and other “emergent” viruses, a team of researchers reported Nov. 26 in a study on bioRxiv that has not yet been certified by peer review.<br/><br/>The updated vaccine, when given to uninfected people, boosted antibodies about 27-fold against XBB.1.5 and about 13- to 27-fold against JN.1 and other emergent viruses, the researchers reported.<br/><br/>While even primary doses of the COVID vaccine will likely help protect against the new JN.1 subvariant, “if you got the XBB.1.5 booster, it is going to be protecting you better against this new variant,” Dr. Rajnarayanan said.<br/><br/></p> <h2>2023-2024 Vaccine Uptake Low </h2> <p>In November, the CDC posted the first detailed estimates of who did. As of Nov. 18, less than <span class="Hyperlink">16%</span> of U.S. adults had, with nearly 15% saying they planned to get it.<br/><br/>Coverage among children is lower, with just 6.3% of children up to date on the newest vaccine and 19% of parents saying they planned to get the 2023-2024 vaccine for their children.<br/><br/></p> <h2>Predictions, Mitigation</h2> <p>While some experts say a peak due to JN.1 is expected in the weeks ahead, Dr. Topol said it’s impossible to predict exactly how JN.1 will play out.<br/><br/>“It’s not going to be a repeat of November 2021,” when Omicron surfaced, Dr. Rajnarayanan predicted. Within 4 weeks of the World Health Organization declaring Omicron as a virus of concern, it spread around the world.<br/><br/>Mitigation measures can help, Dr. Rajnarayanan said. He suggested:<br/><br/>Get the new vaccine, and especially encourage vulnerable family and friends to do so.<br/><br/>If you are gathering inside for holiday festivities, improve circulation in the house, if possible.<br/><br/>Wear masks in airports and on planes and other public transportation.<span class="end"/></p> <p> <em>A version of this article appeared on <span class="Hyperlink"><a href="https://www.webmd.com/covid/news/20231207/new-covid-variant-could-disrupt-holiday-plans">WebMD.com</a></span>.</em> </p> </itemContent> </newsItem> <newsItem> <itemMeta> <itemRole>teaser</itemRole> <itemClass>text</itemClass> <title/> <deck/> </itemMeta> <itemContent> </itemContent> </newsItem> </itemSet></root>