California could see an early and especially sharp start to the annual flu season, as a combination of low vaccination rates ...

LOS ANGELES -- With the lowest COVID-19 infection rate among all states as of Friday, California, which has some of the strictest mask and vaccination mandates in the country, has managed to flip the ...

A 3D model shows a visualization of the measles virus. Sutter County in Northern California has the lowest vaccination rates among transitional kindergarten and kindergarten students in the state, ...

A new influenza strain spreading internationally could bring an early flu season to California, according to health experts.

SACRAMENTO, Calif. (KABC) -- A bill moving through the California legislature would make it illegal for anti-vaxxers to obstruct, intimidate, or harass people at vaccination sites. Multiple protests ...

Several parents backed by a conservative group are suing California over a state law that eliminated religious exemptions for school-mandated vaccines, noting how Democratic Gov. Gavin Newsom and the ...