Public health experts, doctors and scientists have decried the update as the kind of misinformation the CDC has fought for decades.

Health Secretary Robert F. Kennedy Jr. said in an interview with the New York Times that he personally instructed the U.S. Centers for Disease Control and Prevention to change its longstanding positio...

Late Wednesday, the CDC page for information on vaccines and autism was updated to add an asterisk next to its header “Vaccines do not cause autism.”