Former Bucs player Vincent Jackson diagnosed with stage 2 CTE following posthumous study of brain

After his death, the family of Vincent Jackson donated his brain to get answers on what may have led up to his death in February. After months of research, they said he had stage 2 CTE.

CDC panel recommends Pfizer, Moderna vaccines over J&J shot

Most Americans should be given the Pfizer or Moderna vaccines instead of the Johnson & Johnson shot that can cause rare but serious blood clots, U.S. health advisers recommended Thursday.

Army: 98% of active duty got COVID-19 vaccine by mandatory deadline

The Army said 98% of its active-duty force has gotten at least one dose of the mandatory COVID-19 vaccine, as of this week's deadline.

Princeton moves exams online as colleges go back to drawing board to fight COVID

Colleges across the U.S. are starting to require booster shots, extend mask mandates and in some cases revert to online classes as they brace for the new omicron variant.

New California rules end distinction for vaccinated workers

The main change to the temporary rule is that it would erase current distinctions between vaccinated and unvaccinated employees. Both would be barred from the workplace if they come in close contact with someone with the virus.

How California mask mandate impacts Bay Area counties

Keeping up with California’s indoor mask mandate can be confusing, but it means most Bay Area counties will see no changes, with the exception of Marin and Solano counties.

How to tell the difference between the common cold, flu and COVID-19

Is it COVID-19, the flu or the common cold? Jade Flinn, a nurse educator at Johns Hopkins Hospital’s biocontainment unit, outlines some of the key differences and similarities between the three illnesses.

Google memo lays out plan to fire employees who don't comply with vaccine mandate: report

Unvaccinated employees at Google may soon have to use the search engine to find job openings. A new company memo shows the company putting its workers on notice to comply with their vaccine policies or lose their jobs.

Omicron variant now makes up about 3% of US COVID-19 cases, CDC says

The CDC estimates that the new omicron variant of the coronavirus now makes up about 3% of COVID-19 cases reported nationwide.

California exempts San Francisco from indoor mask rule

San Francisco will continue to allow fully vaccinated people to remove their masks in gyms and workplaces while its overall masking mandate remains in effect, the city Department of Public Health announced.

California's statewide indoor mask mandate kicks off as virus cases rise

The mandate requires everyone in California to mask up indoors, regardless of vaccination status, from December 15 through January 15.

California indoor mask requirement has some exceptions

California's new indoor mask requirement, which is set to take effect Wednesday, will have some exceptions that allow cities like San Francisco to continue permitting people to remove face coverings in certain situations.

US COVID-19 death toll tops 800K amid increasing delta, omicron spread

The milestone is a sad ending to a year that held much promise with the arrival of vaccines, and comes as officials around the world are monitoring the spread of the new omicron variant.

Canines in California trained to sniff out COVID from old socks

Dogs in Concord, Calif. are being trained to sniff COVID from old socks. The goal is to eventually use these COVID-sniffing canines in schools.

Omicron variant is milder but better at evading vaccines, South African data indicates

The omicron variant appears to cause less severe disease than previous strains, South African data suggests. But the Pfizer vaccine seems to offer less defense against infection.