• The CDC quietly updated its website to acknowledge that studies "have not ruled out the possibility" that infant vaccines contribute to autism, contradicting its previous blanket claim that "vaccines do not cause autism."

• Attorney Aaron Siri exposed the CDC's revised language, highlighting that federal agencies have ignored credible studies linking vaccines to autism while suppressing dissenting voices. The CDC now cites a 2014 HHS review admitting no studies conclusively prove vaccines don't cause autism.

• The CDC referenced a 2010 study showing a three-fold increase in autism reports among newborns vaccinated with HepB within their first month of life compared to unvaccinated infants.

• The CDC conceded that research on the MMR vaccine – the most scrutinized in the autism debate – has "serious methodological limitations," failing to account for vulnerable subgroups or mechanistic evidence linking vaccines to neurodevelopmental harm.

• Despite a 2011 Institute of Medicine review finding inadequate evidence to rule out vaccines like DTP as a cause of autism, the CDC continued pushing its "safe and effective" narrative. Legal challenges under the Data Quality Act forced the agency to backtrack, raising critical questions about why no comprehensive vaccinated vs. unvaccinated studies exist and whether this admission is mere legal compliance rather than genuine transparency.

For years, the Centers for Disease Control and Prevention (CDC) has maintained a firm stance: "Vaccines do not cause autism." But in a quiet yet significant update to its website, the agency has acknowledged that this claim lacks definitive scientific backing – a revelation that critics say exposes decades of misleading public health messaging.