SAN FRANCISCO (KGO) -- In the last two weeks, the UK and other parts of Europe are reporting a spike in COVID-19 cases due to an omicron sub-variant called BA.2 which is believed to be 30 % more ...

The fastest-spreading COVID-19 subvariants yet, the two latest versions of omicron appear to evade protection from vaccines and previous infections more easily than any others before. As of July 2, ...

Add Yahoo as a preferred source to see more of our stories on Google. "When COVID first appeared, we saw the lower respiratory tract manifestation, that is pneumonia. We don't see that anymore," Dr.

SAN FRANCISCO -- There's a new "subvariant" of the omicron variant that's been spreading across Europe and the U.S. Preliminary data shows it's more contagious than omicron. Scientist have named it BA ...

Discover how UCSF is leading the charge in Long COVID research, uncovering key findings that advance our understanding of the ...