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

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

COVID-19 is surging again, indicated by rising wastewater levels and infections across many states. A new variant, Stratus ...

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 ...

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