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 variant, NB.1.8.1, has been identified as the cause of Covid-19 resurgence in China and several other Asian countries. Experts in Europe are predicting a possible increase in cases there.

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 ...

COVID-19 cases are rising in half of U.S. states. What to know about COVID trends and the new Stratus and Nimbus variants.

A new, highly contagious Covid-19 strain has emerged globally as thousands of Australians prepare to travel overseas. Understanding what it is, is crucial for both public health and individual safety.

The Centers for Disease Control and Prevention (CDC) has detected multiple cases of the new COVID-19 variant NB.1.8.1, which has been linked to a spike in cases in China. A CDC spokesperson ...

A new coronavirus variant is spreading in many parts of the world. The variant, NB.1.8.1, has been identified as the cause of Covid-19 resurgence in China and several other Asian countries.

The variant, NB.1.8.1, has been identified as the cause of Covid-19 resurgence in China and several other Asian countries. Experts in Europe are predicting a possible increase in cases there.