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.

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