RFK Jr. and his "MAHA" movement's popularity appears to be at least in slight jeopardy with vaccine-skeptical supporters.

RFK Jr. claims the measles vaccine effectiveness wanes at a rate of nearly 5% a year, an assertion medical experts dispute.

Robert F. Kennedy Jr. softened his image as a vaccine critic while seeking to become the nation’s health secretary.

RFK Jr. voiced support for the MMR vaccine after a measles death, despite a long history of general vaccine skepticism.

Health and Human Services Secretary Robert F. Kennedy Jr. this week made his strongest endorsement yet of the measles vaccine ...

A second unvaccinated child died over the weekend in the ongoing Texas measles outbreak, prompting Health and Human Services ...

Kennedy, Hotez says, made a “false statement” in claiming that the scientific community denies that there are any ...

Kennedy Jr., advocated for the measles, mumps, and rubella (MMR) vaccine amid the ongoing measles outbreak in the country.

Public health experts say the anti-vaccine views fronted by the HHS secretary are wrong and undermine trust in science. But a ...

Robert F. Kennedy Jr., the Health and Human Services Secretary, has spoken several times in April about plans to find the origins of autism.

The nation’s top public-health official has been promoting suspicions of the shot even as he offers comfort.