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

Razor blade throat is considered a side-effect of the new COVID variant, NB 1.8.1. Here's what razor blade throat actually is, and how to treat it..

The newest variant, NB.1.8.1, also known as Nimbus, is now widespread in California and across the United States. The new ...