A new COVID variant called NB.1.8.1, aka Nimbus, is spreading in the U.S. and causing an incredibly painful sore throat, ...

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, CDC data show.

A new COVID-19 variant spreading across the United States may cause an extremely painful sore throat—dubbed the "razor throat ...

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 ...

While COVID-19 transmission remains low in the US, health experts are anxious about the potential for a big summer wave as ...

Children with acute COVID-19 and MIS-C show significant disruptions in lipid metabolism, including patterns resembling adult ...

Fiona Havers, who oversaw CDC respiratory virus data, told colleagues she no longer had confidence the data would be used objectively to set vaccine policy.