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

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 ...

The latest figures from Ireland's Health Protection Surveillance Centre (HPSC) show the variant's share of confirmed cases ...

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 ...