A new COVID-19 variant is spreading rapidly through the U.S. What to know about NB.1.8.1 and its symptoms in Tennessee.

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

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 right now, Subhash Verma, microbiology and immunology professor at the ...

From a persistent sore throat that feels like razor blades to severe muscle aches, discover some unusual signs of the new ...

Intense throat pain is a key symptom of COVID-19 variant NB.1.8.1, referred to as "razor blade throat." Here's what to know.

The current COVID variant, LP.8.1, is a subvariant of Omicron, which took over from Delta as the dominant strain. LP.8.1. is beginning to wane, and a new variant is on the rise. The new variant, ...

A new COVID variant known as NB.1.8.1 is on the rise in the U.S. and beyond, landing on the radar of health officials. The variant, first identified in January 2025, is now being closely monitored, ...

What is the new NB.1.8.1 Covid variant and where has it come from? “The NB.1.8.1 variant, also referred to as Nimbus, is a new strain of the Covid-19 virus that has emerged due to mutations in ...

According to the World Health Network and Global Initiative on Sharing All Influenza Data, NB.1.8.1 has been detected in New ...

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 variant of COVID-19 is being called 'razor blade throat,' and it's spreading around the United States. Learn about NB.1.8.1.