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

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 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 ...

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

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

A new COVID-19 variant may be causing “razor blade” sore throats in people who get it. The Nimbus variant is driving a rise ...

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 ...

A new COVID-19 variant spreading rapidly across the United States is causing excruciating throat pain that patients describe ...