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 ...

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

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