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.

West Nile virus has been detected in a mosquito pool in Solano County, prompting health authorities to ramp up surveillance and control measures, while urging public participation in prevention efforts. No human cases have been reported locally.

Sonoma County allocated nearly $6 million to fund five mobile crisis teams for mental health emergencies, supported by Measure O sales tax revenue, ensuring operation through June 2026.

Napa County plans to convert its Reentry Facility into a Behavioral Health Treatment Center with funds from various sources, addressing mental health and substance abuse.

Sonoma County has introduced "Health To Go" vending machines to offer free health supplies, including Narcan and condoms, to improve public health accessibility and privacy.