The health and human services secretary has repeatedly claimed children need dozens more vaccines than they actually do.

The health secretary has made many inaccurate statements about vaccines. But the science is clear that vaccines have dramatically reduced childhood illness, disability and death.

RFK Jr. decided to take the opposite stance ... where study participants are randomly assigned to get the vaccine or get a placebo. That didn't happen here. Instead, the researchers simply observed what happened naturally. This approach is problematic ...

The Trump administration is ending U.S. support for immunizations abroad because of its opposition not only to foreign aid, but to vaccination itself.

CDC panel backs Merck's Enflonsia for RSV prevention in infants; FDA-approved therapy reduced hospitalizations by 84% in clinical trials.