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 is spreading quickly in the U.S. and bringing with it a painful new symptom.

Two new Omicron subvariants are gaining ground in the U.S. as some people report experiencing respiratory symptoms like ...

Cases of the recently identified Covid-19 variant NB 1.8.1. are rising. Some have dubbed the variant "razor blade throat" for ...

A new COVID-19 variant, NB.1.8.1 - nicknamed "Nimbus" - is rapidly emerging as one of the most common strains in the U.S.

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 new COVID variant called "Nimbus" is spreading. Here's what you need to know about the incubation period, symptoms ...

The new Nimbus COVID‑19 variant is on the rise and is known for its startling sore‑throat symptom dubbed “razor blade throat.

A new COVID-19 variant, dubbed NB.1.8.1, or Nimbus, is becoming increasingly prevalent in the United States. Have any cases ...

The new variant, NB.1.8.1, is also a subvariant of the Omicron variant. It has spread rapidly, and the earliest sample of ...

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