Former CDC head says she was fired for refusing Kennedy's vaccine changes

The former head of the US Centers for Disease Control and Prevention (CDC) said she was fired last month for refusing to sign off on changes to vaccine policy "regardless of the scientific evidence."

Dr Susan Monarez also told a Senate committee on Wednesday she was sacked for refusing a request from Health Secretary Robert F Kennedy Jr to dismiss CDC vaccine experts "without cause."

"He said if I was unwilling to do both, I should resign," she said.