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COVID-19 variant is quietly making its rounds across the United States, prompting health officials to reiterate the ...

Variant NB.1.8.1 accounted for 0% of U.S. cases in April. By mid-June, it was estimated to be the cause of around 37% of ...

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

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

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

NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent ...

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." ...

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

There are no other symptoms outlined that are specific to NB.1.8.1 by the CDC. Symptoms listed by the health agency still ...

What to know about the COVID variant, detected in airport screenings in Washington state, that may cause ‘razor blade’ sore ...

The number of COVID-19 cases is increasing in parts of the U.S. and worldwide amid the emergency of a sub-variant known as ...