California has already reported more measles cases this year than in all of 2024, a worrisome development that comes as the ...

Dengue fever cases nearly double across U.S. in 2024, with California seeing local transmission amid rising Aedes mosquito ...

Health and Human Services Secretary Robert F. Kennedy Jr. and the members of his newly appointed vaccine panel are casting doubt on the hepatitis B vaccine and the established practice of vaccinating ...

ABC News’ Senior White House Correspondent Selina Wang reports on the latest from the CDC’s vaccine advisory committee.

California has more homicides than any state, but it also has the largest population, meaning its rate might not be as high ...

Former CDC vaccine adviser Dr. Finona Havers, who resigned last week over Kennedy's changes to vaccine policy, said it will ...

A presentation slated to be shared at this week’s meeting of vaccine advisers to the US Centers for Disease Control and ...

A presentation scheduled for a CDC vaccine meeting claimed that a vaccine preservative could cause long-term brain effects, but the study it cited doesn’t appear to exist.

This month, the number of measles cases reported in California so far in 2025 jumped above the total for all of 2024.