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

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

Ireland is seeing a rise in Covid cases linked to the fast-spreading XFG Stratus variant, now behind nearly every confirmed ...

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

New in vitro neutralization data show continued, consistent neutralizing activity of PEMGARDA® (pemivibart) against XFG Centers for Disease Control data and wastewater surveillance data indicate XFG ...

COVID-19 cases are rising across the U.S., with Texas among the hardest hit. Experts say the Stratus variant and summer ...