Is the mu variant worse than delta? What to know about COVID-19 mutations Right now, there are only a handful of concerning COVID-19 variants: alpha, beta, gamma and delta.

Here's what local health experts are saying about the COVID-19 Mu variant after cases ere reported in the Bay Area.

The latest new coronavirus strain, called mu, is now present in California, with 348 cases having been identified. Dr. Peter Chin-Hong, an infectious disease specialist at UCSF, discusses how ...

Global health leaders say the COVID-19 mu variant is showing signs of some vaccine immunity.

The XFG COVID-19 variant, aka "Stratus," is spreading rapidly in the U.S. as cases climb. Here's what to know about symptoms ...

L.A. County's health department has detected 167 instances of the mu variant, all between June 19 and Aug. 21, with most of them found in July.

On Tuesday, the World Health Organization (WHO) said that it is tracking a new COVID-19 "variant of interest," and while the strain is nowhere near as widespread as other mutations, the ...

A new variant of the coronavirus is raising concern. The World Health Organization is monitoring the Mu variant. More research is needed to determine if it is any more contagious.

COVID variant XFG, nicknamed Stratus, accounts for three-fourths of COVID cases in the U.S., according to the Centers for ...

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

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...