The new COVID-19 variant NB.1.8.1, known as Nimbus, is causing concern due to its subtle symptoms and high transmission rate.

The new COVID-19 variant NB.1.8.1, or 'Nimbus', causes unusual symptoms like razor blade throat, long-lasting congestion, odd ...

The COVID-19 variant that may be driving a recent rise in cases in some parts of the world has earned a new nickname: "razor ...

The N.B.1.8.1 variant was first detected in January 2025. By the end of April, it was the dominant strain in both Hong Kong ...

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

COVID-19 cases remain relatively low in Arizona, in spite of a new strain of the virus gaining dominance across the U.S.

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 new COVID variant is causing people to experience such severe sore throats that they say it feels like swallowing razor blades.

A new COVID variant is causing people to experience such severe sore throats that they say it feels like swallowing razor blades.

Patients and doctors say the latest COVID-19 variant spreading in the U.S. in some cases causes a sore throat so painful it ...