Republican lawmakers may not have considered avowed anti-vaxxer and conspiracy theorist Robert F. Kennedy Jr. to be too ...

RFK Jr. has claimed measles can be treated with vitamin A and that severe infection is linked to poor diet. But many experts who spoke with ABC News disagreed.

Robert F. Kennedy Jr.’s failure to install a fellow vaccine critic to a key government post is testing the limits of how far the US health secretary can go to promote his public-health agenda.

Kennedy Jr., an ardent vaccine critic who would have been Weldon’s boss as health secretary. Perhaps Weldon’s biggest problem ...

There sat Robert F. Kennedy Jr., the nation’s top health official, at a Steak ’n Shake with Fox News host Sean Hannity, ...

Dr. Dave Weldon, who was Trump's choice for the head of the CDC, has taken a controversial stance on vaccines and autism. Here's what to know ...

Former CDC director Dr. Rochelle Walensky called for stronger, nationwide guidance on infant measles vaccine doses in a new opinion paper published Friday.

Offit: People aren't going to be making a good choice for themselves if they hear Robert F. Kennedy Jr. say, falsely, that ...

Amid a growing measles outbreak in west Texas and New Mexico, many doctors and nurses are fielding questions from patients ...

The White House has withdrawn the nomination of David Weldon, a former Florida congressman, to lead the Centers for Disease ...

Weldon was told Wednesday night that his nomination was being withdrawn, another Trump administration official said. The ...