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 contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

How was the Nimbus COVID variant first detected in the United States? It’s summer! That time of the year when you’re planning vacations, barbecues, or just enjoying time outdoors. But a new health ...

The Centers for Disease Control and Prevention's vaccine advisory committee wrapped up the first day of its meeting since ...

The CDC's new vaccine advisory panel, appointed by HHS Secretary Robert F. Kennedy Jr., is set to meet again to make some ...

NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent right now, Subhash Verma, microbiology and immunology professor at the ...