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 ...

According to the World Health Network and Global Initiative on Sharing All Influenza Data, NB.1.8.1 has been detected in New ...

Reported symptoms of NB.1.8.1 are similar to other COVID-19 strains, but one distinctive complaint is a severe sore throat, ...