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

Coronavirus cases may surge in the coming weeks, as they have every summer since the pandemic began five years ago, experts ...

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 ...

A new strain of COVID-19, XFG, is spreading rapidly across the world, including in the United States. Anecdotally, people who ...

COVID-19 cases are on the rise again across the United States, with the biggest increases in parts of the South, Southeast ...

CHICOPEE, Mass. (WWLP) – Doctors are warning of two new COVID-19 strains this summer that are currently going around.

As we get back to summer travel, cookouts, and time with friends and family, COVID-19 is still something to watch out for.

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.

Airport screening in the U.S. detected the new variant in travelers arriving in California, Washington state, Virginia and ...