The latest COVID variant is causing a distinctive symptom: a sore throat so severe it's nicknamed "razor blade throat." Some ...

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 ...

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