Kennedy has been nominated to lead the federal government's health agency—what does this mean for vaccine access in the U.S.?

Long before the COVID-19 pandemic, Robert F. Kennedy Jr. was building up a following with his anti-vaccine nonprofit group, Children’s Health Defense and became one of the world’s most influential spreaders of fear and distrust around vaccines.

Children’s Health Defense, the anti-vaccine nonprofit group founded by Robert F. Kennedy Jr., recorded a more than 30% drop in revenue last year, according to recent tax filings.

The top US public health official warned about the threat of curtailing vaccination efforts as longtime skeptic Robert F. Kennedy Jr. prepares for an influential role in the incoming Trump administration.

Robert F. Kennedy has been critical of immunizations, contending they lack effectiveness and have links to autism, claims that have been debunked.