By Jack Phillips Contributing Writer At least 21 states are reporting a COVID-19 variant that spread across China earlier ...

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 cases.

The new Covid-19 variant from China, named the B. 1.8.1 strain, has been detected in six different US states and has been described as "more transmissible" by doctors with fears that mask mandates ...

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 ...

A new COVID-19 variant called NB.1.8.1 was first collected in China in January. As of May 27, less than 20 cases of the new variant had been reported in the U.S. Currently approved COVID-19 ...

A new COVID-19 variant, NB.1.8.1, first detected in China in January, has been designated as a variant of interest by the WHO. Less than 20 cases of NB.1.8.1 have been reported in the U.S. as 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 common questions about the new variant.

A new COVID-19 variant sweeping through China has yet to make a sizable footprint in the U.S., the Centers for Disease Control and Prevention (CDC) says. In January, a new COVID-19 variant known ...

The CDC confirmed the presence of the NB.1.8.1 variant, but says there are too few cases to be included in official COVID tracking data.