News

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-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...
Nimbus (NB.1.8.1) is a descendant of the Omicron variant, and was first detected in January 2025. Since then, it has spread ...
Also known as "Nimbus," the new COVID variant NB.1.8.1 is characterized by its extremely painful sore throat, described as ...