Health authorities and scientists say they are now racing to study BA.2.86, a new strain of the virus that causes COVID-19, after the highly mutated variant was spotted spreading in multiple countries ...

The fast-spreading BA.5 subvariant of Omicron and its close relative BA.4 now make up around 95% of COVID-19 cases in the U.S., according to estimates published Tuesday by the Centers for Disease ...

The subvariant of Omicron is becoming more common in the United States but probably won’t cause another large spike. By Carl Zimmer As the Omicron coronavirus surge subsides, researchers are keeping ...

The emergence of immune-escape variants of severe acute respiratory syndrome coronavirus 2 warrants the use of sequence-adapted vaccines to provide protection against coronavirus disease 2019. A total ...

A new version of omicron is dominant in the U.S. The coronavirus subvariant known as BA.5 accounted for nearly 54% of the country's Covid cases as of Saturday, according to the Centers for Disease ...

Jessica was a writer on the Wellness team, with a focus on health technology, eye care, nutrition and finding new approaches to chronic health problems. Expertise Public health, new wellness ...

For much of the pandemic, the only silver lining to coming down with a case of COVID-19 was that you likely wouldn't catch it again for a while (though there isn't exactly a definitive answer on how ...

BA.5 is still classified as an omicron variant but has new mutations different from BA.1 and BA.2 The first cases appeared in the Northeast, then started spreading to the South, Midwest and West Can ...

Even as SARS-CoV-2 gets better at spreading and evading some of the immune protection that people have built through infections or vaccination, new variants inevitably arise. That’s been the case with ...