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

A new strain of COVID-19 can cause what some people describe as a “razor blade throat.” The new variant called NB.1.8.1, or ...

Also known as "Nimbus," the new COVID variant NB.1.8.1 is characterized by its extremely painful sore throat, described as ...