Medical experts say the CDC “is promoting the outdated, disproven idea that vaccines cause autism" and advise parents to consult clinicians for fact-based guidance.

Former US public health officials are sounding alarms about significant changes being made to the country’s vaccine policy under the Trump administration.

Alongside the guidance update, HHS plans to study biological mechanisms and possible links that may contribute to autism.

He fired the previous 17 independent experts in June and many of the new members are aligned with the health secretary's anti-vaccine views. During the meeting, climate scientist and CDC consultant Cynthia Nevison said in her presentation that the risk of hepatitis B transmission to healthy children has been overstated.

The Centers for Disease Control and Prevention updated its website to suggest that there is no evidence definitively proving that vaccines don't cause autism.

Scientific information on the US Centers for Disease Control and Prevention’s website was replaced Wednesday with anti-vaccine talking points that don’t rule out a link between vaccines and autism, despite an abundance of evidence that there’s no connection.

For more than 20 years, the Centers for Disease Control and Prevention told the public that studies show no link between vaccines and autism. On Nov. 19, it revised its messaging, acknowledging that current evidence does not rule out a possible association.

The CDC has undergone drastic changes throughout 2025, including a webpage revision claiming uncertainty as to whether or not vaccines cause autism.

The decision to now publicly state a correlation between autism and vaccines undermines the CDC’s longtime position of the contrary. The alleged connection between vaccines and

The CDC vaccine safety web page has been updated to say that "vaccines do not cause autism is not an evidence-based claim."