State health officials confirmed a second pediatric death associated with the flu this season. Here's what to know.

Eighteen states rejected new federal vaccine recommendations as a lawsuit against Health and Human Services Secretary RFK Jr.

Pediatrician and Ameican Academy of Pediatrics spokesperson Dr. David Hill reacts to the CDC's newest vaccine schedule.

"I guess a smiley face, it's probably clear, but sometimes, if you have a face with a tear, are they sad? Are they crying ...

Flu hospitalizations are increasing across California, with projections showing further rises in the coming weeks, state ...

BIG SUR, Calif. (AP) — A 90-mile section of California’s Highway 1 along the famous Big Sur coast fully reopened Wednesday ...

Pertussis, known for the distinctive “whoop” that accompanies severe coughing fits, can last up to 10 weeks and lead to ...

Seasonal influenza activity has elevated in California due to a “super flu” strain that has resulted in higher confirmed flu ...

NEW YORK (AP) — The U.S. flu season appears to be waning with two straight weeks of decline in measures of flu activity, ...

California health officials warn a new influenza A strain is spreading statewide, posing higher risks for young children and ...

ABC30 and ABC News are taking action to keep people protected and informed, launching a tool that allows you to see your ...

A federal three-judge panel on Wednesday allowed California to use a new voter-approved U.S. House map that is designed to ...