State water regulators set manganese notification at 0.05 mg/L and response at 0.20 mg/L, citing infant health concerns. Public water systems must report exceedances and may need to act quickly.

Alameda County Vector Control confirmed a bat found near Palo Verde Common tested positive for rabies; officials say there are no known exposures.

Stanford Blood Center says reserves are critically low and type‑O units are especially scarce. The center and local partners are asking area donors to schedule appointments or visit nearby drives.

Kaiser Permanente's Santa Clara Medical Center has detected several cases of Legionella and is treating building water while investigators try to find the source.

Two deaths at San Jose State within a month have raised questions about campus deterrents, secrecy and the need for more mental‑health support.

Wastewater surveillance shows rotavirus rising across Northern California; parents are urged to watch infants for dehydration and discuss vaccines with clinicians.

A county report warns Hazel Hawkins' shutdown would send about 11,000 extra ER visits to St. Louise in Gilroy, forcing new stations and staffing.

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.

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.

SFEI finds common disinfectant chemicals in Bay wastewater and biosolids; small outflows may already exceed aquatic safety limits.

A major meta-analysis finds mortality starts to fall near 4,000 daily steps — not 10,000. Small walks can add measurable benefits.

Former players, students and local leaders packed a Stanford panel to push back on mental-health stigma and point attendees to local crisis resources.