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 highly transmissible COVID-19 variant behind a rise in cases in China has made its way to the United States, and now attention is starting to focus on whether its symptoms bear any distinctions from ...

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 ...

The CDC confirms a new COVID-19 variant NB.1.8.1, which has been linked to a spike in cases in China, was detected in the U.S. in low numbers.

The Centers for Disease Control and Prevention's airport screening program has detected multiple cases of the new COVID-19 variant NB.1.8.1, which has been linked to a large surge of the virus in ...

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 ...

While COVID-19 transmission remains low in the US, health experts are anxious about the potential for a big summer wave as ...

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 common questions about the new variant.

The COVID-19 NB.1.8.1 variant has been linked to a high number of cases in China and Hong Kong. Earlier this month, Hong Kong authorities issued a statement urging the public — especially high ...