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

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 ...

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

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, CDC data show.

The COVID-19 Nimbus variant is on the rise in the U.S. as many report a painful symptom known as "razor blade throat." If you ...

NB.1.8.1, a new COVID-19 variant that has caused concern among WHO officials, is now spreading in America, according to CDC ...

Nimbus has been detected in at least 14 states including New York, New Jersey, Massachusetts and Rhode Island.

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, just in time for peak travel season. The mutated omicron subvariant, which caused ...

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 ...

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

A new coronavirus variant is spreading in many parts of the ... This new variant, NB.1.8.1, also called Nimbus, is a descendant of the Omicron strain. The World Health Organization has deemed ...

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