The U.S. Centers for Disease Control and Prevention (CDC) has significantly revised its public guidance on the relationship between vaccines and autism, acknowledging for the first time that the long-standing claim “vaccines do not cause autism” was not an evidence-based statement.
In updated language on its “Autism and Vaccines” webpage, the agency now states that scientific studies have not ruled out the possibility that infant vaccines may contribute to autism, and concedes that earlier CDC communications downplayed uncertainty in an effort to avoid vaccine hesitancy.
The update highlights that studies suggesting a possible link were historically ignored by health authorities, and notes that repeated reviews by federal agencies and the National Academy of Sciences have found no studies capable of supporting the categorical claim that infant vaccines such as DTaP, HepB, Hib, IPV and PCV do not cause autism — leaving the previous CDC statement in violation of the Data Quality Act.
The agency says it is now correcting the record, while the Department of Health and Human Services begins funding new research into infant vaccination and autism.
The revised page also references a 2014 Agency for Healthcare Research and Quality review that found a threefold increase in parent-reported autism among newborns who received the Hepatitis B vaccine within the first month of life, compared with those vaccinated later or not at all. It further states that no research currently supports the claim that any of the 20 vaccine doses recommended in the first year of life — including DTaP, HepB, Hib, IPV, PCV, rotavirus and influenza — have been proven not to cause autism.
Regarding the MMR vaccine, the CDC now cites a 2012 Institute of Medicine review that found most MMR-autism studies had “serious methodological limitations,” with the remaining few also criticised for flaws and limited ability to detect vulnerable subgroups or consider mechanistic evidence. The updated guidance represents a dramatic shift from the CDC’s historical messaging which considered the vaccine-autism link a “conspiracy theory”, and signals a new federal effort to revisit long-standing assumptions about vaccine safety.
BOMBSHELL: The CDC has updated its “Autism and vaccines” page to start telling the truth, including:
“The claim ‘vaccines do not cause autism’ is not an evidence-based claim because studies have not ruled out the possibility that infant vaccines cause autism.”
“Studies…
— Aaron Siri (@AaronSiriSG) November 20, 2025
Image credit: Adam Lemieux
Thank you for publicising this
Vaccines are without doubt the biggest scam in medicine. Root out the corruption and fake science. All medicines should be free and unpatented. Dissolve Big Pharma!
All essential medicines should be free and unpatended.
However, it needs to be claer that pharma needs to make profit. Or do you trust govt with research? Govt should be the oversight, instead we get corruption.
Agree that Big Pharma needs to be permanently dissolved into very much smaller parts. As things stand they, and the Big Money behind them, have the resources to simply buy and bully the regulators. While occasionally governments like Trump’s may push back a bit on the corruption, Big Pharma can just bide their time and return to their corrupt ways when a new govt comes in and the public is focussed on other things. It’s also debatable whether anything truly useful has come from Pharma in the last 40 years, we might just be better off completely without it?..
Big pharma are an evil cartel. Profit is their only motivation, not health. It’s been known for many years that the autism debacle is caused mainly by childhood vaccines and goverments not only ignore that fact but Ronald Reagan even put into place a law that the victims could not sue big pharma for their injuries. All this did was give big pharma the motivation to flood the market with more and more debilitating vaccines. Evil is too tame a word.