Less than 20 cases of the new COVID-19 variant, NB.1.8.1, had been reported in the U.S., as of Tuesday, May 27.

A new COVID-19 strain linked to a spike in cases in China has been detected in the U.S., but the CDC says it has seen so few ...

Preliminary data from researchers in China suggest the NB.1.8.1 variant is not better at evading the immune system compared ...

In mainland China, the portion of patients going to the ER with COVID has more than doubled in the last month.

A new Covid-19 variant, NB.1.81, initially detected in international travelers, has surfaced in the US, raising concerns ...

NB.1.81. is the latest COVID-19 variant spreading in the U.S. and Europe. Infectious disease doctors explain NB1.8.1 symptoms ...

A new Covid-19 variant, NB.1.8.1, has surfaced in the US, following a surge in China, with cases detected in international ...

The highly infectious NB.1.81 Covid variant has been detected in the US, including in New York City, the Centers for Disease ...

As the Trump administration moves to limit COVID booster vaccines for some, here's what to know about the latest variant NB.1 ...