COVID-19 cases are rising again in the United States, and the "stratus" variant might be to blame. The big picture: A summer ...

A new COVID variant, "Stratus", has grown in the U.S. and has now climbed the ranks, but little is known about its impact in ...

COVID-19 variant XFG accounted for 0% of U.S. cases in May. By late-June, it became the third-most common strain.

“Midlife women often juggle caregiving, careers, and hormonal shifts that can strain the immune system,” Boden-Albala says.

The Centers for Disease Control and Prevention said a new COVID variant is spreading across the country. The variant is ...

The rapid rise of the SARS-CoV-2 variant XFG this summer could make it the dominant strain by the start of the fall COVID season, but experts say current vaccines can likely handle the Omicron-based ...

The XFG variant, known as "Stratus," is gaining traction in the U.S., rising to 14% of cases since May. While the WHO ...

Known officially as XFG, the variant was first detected in Southeast Asia back in January. For months, it flew under the ...