At a Santa Rosa town hall, lawmakers and health leaders warned rural hospitals and maternity services are at risk from funding cuts and razor‑thin margins.

Aedes aegypti — a bottle‑cap‑breeding, day‑biting mosquito that can spread dengue and Zika — has been detected in parts of the Bay Area; officials urge residents to clear standing water.

Wastewater scans and public‑health data show human metapneumovirus rising in parts of Northern California. The virus can cause a seal‑like 'barking' cough in young children.

Santa Clara County confirmed a measles case in an adult who recently traveled abroad; officials say the vaccinated patient is isolating and urged residents to check MMR status.

A winter surge of death cap and lookalike mushrooms has hospitalized dozens in California, with Spanish‑speaking and Mayan immigrant communities among the hardest hit.

A larger second flu peak has hit Sonoma and Napa counties as H3N2 and rising wastewater signals push test positivity and hospital visits higher. Health officials urge vaccination and early treatment.

An analysis of millions of California pregnancies reveals a sharp rise in prenatal opioid use over the past decade, with newborns increasingly born into withdrawal and requiring intensive medical care. The surge is fueling calls for expanded maternal treatment programs.

Sonoma County issues advisory against wild mushroom consumption after a resident dies and poisonings surge, including cases requiring liver transplants.

California now requires tortillas to be fortified with folic acid to reduce birth defects in the Latino community, where prior folic acid consumption was low.

State health officials say TRE House magic mushroom gummies, bars and syrup tested positive for illegal psychedelic compounds and should not be eaten.

Bay Area health officials encourage flu and COVID vaccinations for everyone over 6 months to bolster community immunity and prepare for the holiday season.

Sonoma County issues a health order mandating masks in health facilities to combat respiratory illnesses from November 1 until March 31, 2026, while encouraging vaccinations for flu, COVID-19, and RSV.

West Nile virus activity intensifies across Northern California with 9 confirmed human cases statewide and over 1,100 positive mosquito samples detected in 2025.