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 vaccines ...
A new COVID-19 variant that was unheard of just months ago is now projected to be the second-most common strain in the United States. Variant NB.1.8.1 was first detected in China in January but ...