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Kennedy repeatedly defended his record in heated exchanges with senators from both parties and questioned data that shows the effectiveness of vaccines.

The governors of California, Oregon and Washington announced the creation of the West Coast Health Alliance to keep their states' health policies unified and grounded in science.

A COVID wave is washing over California, with the state seeing continued increases in the number of newly confirmed cases, the viral test positivity rate and hospitalizations attributed to the disease.

A tale of two Republican doctor-senators shows how the party has changed.

As COVID surges yet again, the best tool against the virus -- vaccine -- is under assault by the Trump administration.

Chagas disease is deadly, pervasive and more prevalent in the U.S. than you'd think. It's not just brought here by people from nations where the disease is endemic, but by bloodsucking kissing bugs native to the U.S. And it may be sickening far more ...

The body of a woman was found by Pasadena firefighters responding to a house fire Saturday morning, officials said.

Products from Country Eggs LLC in Lucerne Valley were found to be contaminated with salmonella, authorities said.

New federal guidance surrounding COVID vaccine authorization could make it more difficult for many people to be inoculated against the circulating -- and seasonally spiking -- coronavirus.

As climate change increases heat and dryness in Southern California and the Central Valley, dust storms pose an increasing problem and health risk.