The CDC website guidance regarding vaccines and autism has reportedly changed, now stating that "vaccines do not cause autism" is not an evidence-based claim. Furthermore, the updated page allegedly claims that studies linking vaccines to autism have been "ignored by health authorities."

Allegations of who caused this shift are polarized. One angle cites Sen. Bill Cassidy (R., La.) recalling Robert F. Kennedy Jr. assuring him the CDC would not alter statements disclaiming a vaccine-autism link. Conversely, another source accuses "political appointees inside the Department of Health and Human Services" of making the change without proper staff input. User Stamau123 reports that RFK Jr. even told The New York Times he personally directed the update to contradict prior guidance.

The raw consensus suggests the official guidance has shifted radically, leaving conflicting accounts of its origin. The fault lines are deep: one side suggests political overreach by appointees, while another points to direct pressure from high-profile advocates like Robert F. Kennedy Jr.