The XEC COVID variant has spread rapidly in some European countries, and it's now been reported in some U.S. states. But ...

Currently, KP.3.1.1 accounts for over half of all COVID cases in the U.S. The next closest subvariant circulating is KP.2.3, ...

COVID levels in the U.S. remain high, according to wastewater detections, which is a retreat from the CDC’s label of “very ...

Discover the latest COVID-19 strain, XEC, detected in 12 U.S. states and 15 countries. Experts predict it and another variant, MV.1, to become dominant strains.

Dubbed a "more contagious" Covid variant -- a hybrid of earlier Omicron subvariants, KS.1.1 and KP.3.3 -- it was first ...

San Diego-based institution started in 1924 with a 57-bed hospital and clinic. It now has 5 hospitals and 19 outpatient ...

The new variant is spreading in Europe, and doctors predict it will soon become the dominant COVID strain in the U.S.