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

That's because the variant — NB.1.8.1. or “Nimbus” — may cause painful sore throats. The symptom has been identified by ...

The COVID-19 variant that may be driving a recent rise in cases in some parts of the world has earned a new nickname: “razor ...