Swimmers and pet owners are being warned to stay away from Lake Castaic in Los Angeles County as toxic blue-green algae bloom invades the waters.

San Mateo County in California reports increasing numbers of dead birds testing positive for West Nile Virus, urging residents to take preventive measures as the situation worsens.

As the updated COVID-19 vaccine rolls out in California, public health officials encourage residents to stay protected against emerging strains.

Chicago faces a blood shortage crisis, with dangerously low blood donation levels prompting urgent calls for people to step up and donate. Learn how you can help!

New Hampshire sees a worrisome increase in two dangerous tick- and mosquito-transmitted diseases, raising concerns for public health.

Los Angeles County encourages residents to get the updated COVID-19 vaccine as SARS-CoV-2 concentrations in wastewater show elevated transmission rates.

Los Angeles County is facing an unprecedented overdose crisis. Authorities and community partners commit to ending the deadly epidemic with a multi-faceted prevention strategy.

An outbreak of Salmonella at a Chicago taqueria has left 55 people ill and led to multiple lawsuits against the restaurant, health officials continue to investigate the source of the contamination.

Blood suppliers in Chicago make an urgent appeal for donors as inventory levels drop precariously low, hospitals may soon face difficult decisions concerning blood rationing.

Swimming, surfing, and splashing in the ocean at Los Angeles County beaches have become a cause for concern for health authorities.

Due to the lingering effects of Tropical Storm Hilary, Southern California is witnessing a dramatic surge in invasive mosquitoes, potentially putting public health at risk.

Recent findings at Los Peñasquitos Lagoon revealed mosquitoes carrying the West Nile virus, prompting officials to issue precautionary guidelines. Stay informed and learn how to protect yourself and your community.

With West Nile virus infected mosquitoes and birds detected in Livermore, authorities take action to halt the spread, carrying out mosquito control treatments in various areas.