Covid has largely dropped out of the headlines, but the virus that causes it is still circulating. We ask what we should know about a new variant of SARS-CoV-2, the state of the Covid pandemic in 2025 ...

Researchers found that Akkermansia muciniphila boosts lung-specific antiviral immunity against SARS-CoV-2 in mice by modulating the gut–lung axis. This commensal gut bacterium shows promise as a ...

Two new Omicron subvariants are gaining ground in the U.S. as some people report experiencing respiratory symptoms like ...

A new Omicron subvariant has caused infections and deaths in South and Southeast Asia. Europe may see a spike after ...

A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...

The COVID-19 Nimbus variant is on the rise in the U.S. as many report a painful symptom known as "razor blade throat." If you ...

The newest concerning variant of covid-19 is rapidly advancing across the U.S. Data from the Centers for Disease Control and ...

NB.1.8.1 has mutations that could increase the virus’s transmissibility and decrease the efficacy of certain neutralizing antibodies against it.