The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

A new study analyzing the immune response to COVID-19 in a Catalan cohort of health workers sheds light on an important question: does it matter whether a person was first infected or first vaccinated ...

There’s still time to “enhance our preparedness” with vaccinations, he said. While the new omicron variant of the COVID-19 virus has not yet been detected in the United States, it will "inevitably" ...

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 ...

SAN FRANCISCO (KGO) -- Now that the omicron variant has reached the U.S. via the Bay Area, the question follows, what happens next for vaccines, public policy and research? UCSF has confirmed they're ...

Businesses are dealing with staffing issues, higher costs and fewer customers. Small businesses around the country are feeling the impact of the surge in new COVID-19 cases, primarily driven by the ...

New data reveal an unexpected risk factor for the highly contagious Omicron virus: low levels of vitamin D. Source: Fernando Zhiminicela / Pixabay A recent study by Israeli scientists found “striking” ...