The COVID-19 variant that may be driving a recent rise in cases in some parts of the world has earned a new nickname: "razor ...

The N.B.1.8.1 variant was first detected in January 2025. By the end of April, it was the dominant strain in both Hong Kong ...

Ezzy Pearson's cold symptoms of a runny nose, exhaustion and a persistent cough turned out to be a type of cancer ...

So far, 15 U.S. states have positive Nimbus cases, including Rhode Island, New York, Vermont, and Massachusetts.