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.

The recent death of a teenage girl in India has spotlighted the deadly Nipah virus, raising global concerns due to its high ...

Pepper the cat is at it again. After his hunting skills helped virologists identify the first jeilongvirus in the United ...