The “Stratus” variant (XFG) was first identified in January in Southeast Asia. By June, it accounted for 14% of COVID cases ...

The "probability" of a COVID-19 epidemic trend growing in California is 99.52%, according to the most recent CDC data.

Released Tuesday, the AAP's recommendations call for routine vaccination of children ages 6 months to 2 years, citing elevated risks of severe illness in that age group. The guidance also supports ...

CDC wastewater also shows the XFG variant -- nicknamed stratus -- is most common in the U.S. Stratus can cause a "razor blade ...

A new COVID-19 variant, known as XFG and nicknamed “Stratus,” has quickly become the dominant strain in the United States, ...