When it comes to public health, clarity and trust are everything. So what happens when the agency entrusted with that clarity—our own CDC—releases a statement so muddled it fuels confusion instead of confidence? The fallout is that the CDC is no longer the scientific and public health authority it was since its inception in 1946.
The CDC revised the statement “Vaccines do not cause autism” to:
- 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 supporting a link have been ignored by health authorities.
- HHS has launched a comprehensive assessment of the causes of autism, including investigations on plausible biologic mechanisms and potential causal links. – CDC website
Here’s what really happened: The CDC changed the statement “Vaccines do not cause autism” to say this claim is “not evidence-based” because studies have not ruled out every conceivable possibility that infant vaccines could contribute to autism. This shift is a misuse of the Information Quality Act, which regulates federal agencies’ use of precise language about what science can and cannot definitively prove.
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.” This statement takes advantage of a technicality in the scientific method that anti-vaccine activists have been using for years to promote fear of vaccines despite overwhelming evidence to the contrary.- Paul Offit, MD “Beyond the Noise” substack published 11/20/25
This is a technical legal requirement, not new science, not an emerging warning, and certainly not a reversal of decades of rigorous research. Decades of high-quality studies firmly show that vaccines do NOT cause autism. Autism is a complex condition with no single known cause, and vaccines are not one.
But here’s the problem: the public may see this ambiguous wording and fear the worst. This “pretzel logic,” shaped by legal constraints and political pressure, creates doubt where none belongs. It undermines trust in vaccines and threatens real public health progress.
The ramifications are serious. This change hands anti-vaccine activists and conspiracy theorists a misleading talking point — and we know the stakes. Even small drops in vaccination rates invite outbreaks of measles, whooping cough, and other preventable diseases.
Vaccines save lives. The MMR vaccine and others have been exhaustively studied and proven safe. No credible research supports a link between vaccines and autism. Yet, political battles and misinformation have pushed this harmful messaging into the public sphere — threatening not only scientific integrity but the health of our children.
So what can we do? As school nurses and trusted community voices, our role is more vital than ever. We must double down on evidence-based education, listen with empathy, and combat misinformation with facts and compassion. Collaboration with pediatricians, public health officials, and families is essential to maintain vaccination rates that protect all children.
This moment is a call to action. Don’t let confusion win. Speak up. Share the science. Unite to protect our students and communities from preventable diseases.
Join me and others in a new grassroots organization, Grandparents For Vaccines (GFV), whose mission is to use the power of storytelling about what life was like before we had childhood vaccines.
We represent the 67 million American grandparents who want the best for their grandchildren. Each of us have different backgrounds and life experiences, but we are united by how vaccines changed our lives for the better. The grandparents of America join together to protect our grandchildren at a time of true peril. Our stories have the power to leave a lasting narrative about the value of vaccines.American grandparents who want the best for their grandchildren. Each of us have different backgrounds and life experiences, but we are united by how vaccines changed our lives for the better. The grandparents of America join together to protect our grandchildren at a time of true peril. Our stories have the power to leave a lasting narrative about thevalues of vaccines.
Oregon grandparents share lived experiences to promote vaccinations for preventable illnesses
In the end, truth matters — and the public deserves nothing less.
The following organizations stand united in reaffirming the scientific consensus: vaccines do not cause autism, and the CDC’s language change should not undermine public confidence in vaccine safety.
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American Academy of Pediatrics (AAP)
Dr. Susan Kressly, President of AAP, expressed alarm over the CDC’s change, emphasizing that more than 40 rigorous studies with millions of participants have consistently found no link between vaccines and autism. She urged the CDC to stop amplifying false claims that undermine vaccination efforts.
Source: NPR – AAP Statement -
Autism Science Foundation
The foundation condemned the CDC’s change as a distortion of science filled with anti-vaccine rhetoric, reaffirming that vaccines do not cause autism and stressing the rigorous investigation vaccines have undergone.
Source: PBS NewsHour – Autism Science Foundation Statement -
Infectious Diseases Society of America (IDSA)
The IDSA reiterated that vaccines have been extensively tested and proven safe, with no credible research linking vaccines to autism. They highlighted the ongoing threat of outbreaks from preventable diseases due to vaccine hesitancy.
Source: IDSA Statement
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This cannot be more dangerous. Stakes cannot be higher.
All in 10 months…