Wilma Chan Highland Hospital in Oakland is using its ER to initiate immediate treatment for opioid use disorder, aiding in California's broader adoption of emergency department-based interventions using buprenorphine.

Invasive Aedes aegypti mosquitoes, carriers of multiple viruses, were detected in North Concord, reigniting public health concerns, despite ongoing surveillance since their last sighting in Martinez two years ago.

Mosquitoes carrying West Nile virus were found in San José, prompting vector control to schedule a pesticide spray operation for areas within ZIP codes 95112, 95131, and 95133 on Thursday night. Residents are advised to stay indoors.

UCSF Health opens a new comprehensive care facility, Bayfront Medical Building, in San Francisco to provide specialized and primary outpatient services in one location.

Mosquitoes in San José and Santa Clara County tested positive for West Nile virus. Vector Control has scheduled nighttime mosquito treatments to reduce the risk of human infection. Residents can take precautions to avoid mosquito bites.

Elevated lead levels are found in the drinking water at multiple Oakland schools, sparking health concerns and outrage over delayed action and communication.

West Nile virus-positive mosquitoes were found in San Jose, ZIP code 95123, prompting planned spraying by the County of Santa Clara Vector Control District to reduce populations and prevent a potential health crisis.

San Francisco's Health Department notes low mpox cases, with a zero seven-day average, but traces of mpox have been found in the city's wastewater. Health officials continue to stress the importance of vaccinations and testing.

A dead bird in Atherton tested positive for West Nile virus, prompting calls for residents to eliminate stagnant water and protect themselves with repellent.

Santa Clara County reports two cases of West Nile virus in 2024, with one patient recovering and the other, an immunocompromised person, deceased. Local mosquitos have tested positive for the virus.

West Nile virus-positive mosquitoes were found in San José, leading to truck-mounted spraying on August 15 to reduce the adult mosquito population and public health risks.

West Nile virus-positive mosquitoes were found in parts of San José and Milpitas, leading to scheduled mosquito control treatments by Santa Clara County health officials.

Contra Costa Health advises indoor masking again due to the spread of the FLiRT COVID-19 variant. This is a precautionary recommendation, not a mandate.