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 ...

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 ...

A recent study published in the journal Proceedings of the National Academy of Sciences presented an antigenic map of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants constructed ...