A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...

A painful sore throat, often referred to as "razor blade throat", is just one of the symptoms of a new COVID-19 variant. This ...

Nimbus (NB.1.8.1) is a descendant of the Omicron variant, and was first detected in January 2025. Since then, it has spread ...

The COVID-19 Nimbus variant is on the rise in the U.S. as many report a painful symptom known as "razor blade throat." If you ...

A newer COVID-19 variant may be causing a severe sore throat in those who contract the infections. Here's what to know about "razor blade throat." ...

So far, 15 U.S. states have positive Nimbus cases, including Rhode Island, New York, Vermont, and Massachusetts.

A new COVID variant called NB.1.8.1, aka Nimbus, is spreading in the U.S. and causing an incredibly painful sore throat, ...

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, CDC data show.

Patients are reporting a "razor blade throat" symptom — potentially due to the new "Nimbus" COVID variant — in which their ...

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