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

The new COVID-19 variant, known as Nimbus, is spreading concern due to its distinct symptom of a 'razor blade throat.' This ...

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..