Henry Ford Birth Cohort Study Vax vs. Unvax Reveals Staggering Health Risks in Vaccinated Children
Vaccinated Kids Had 453% More Neurodevelopmental Disorders — 57% Rendered Chronically Ill
The largest vaccinated vs. unvaccinated birth cohort study in U.S. history has surfaced — and the findings are nothing short of alarming.
During sworn testimony before the U.S. Senate’s Permanent Subcommittee on Investigations, Attorney Aaron Siri revealed data from the Henry Ford Health System’s Birth Cohort Study in Detroit, MI.
🚨Vaxxed Vs. Unvaxxed Study Exposed
At the Senate hearing, Aaron Siri, Esq. revealed 57% of vaccinated kids had chronic illness vs 17% unvaxxed. ADHD & learning disabilities? Found only in vaxxed. More shocking revelations to come in the new film “An Inconvenient Study” – Oct 3 pic.twitter.com/rEHqhGZ3E3
— An Inconvenient Study (@AnInconvntStudy) September 10, 2025
Senator Ron Johnson’s hearing, titled “How the Corruption of Science has Impacted Public Perception and Policies Regarding Vaccines,” pulled back the curtain on a long-hidden dataset tracking 18,468 children over a 10-year period. Data came directly from electronic medical records, the gold standard for real-world health outcomes.
The 2020 study conducted by infectious disease doctor Marcus Zervos, MD is titled: “Impact of Childhood Vaccination on Short- and Long-Term Chronic Health Outcomes in Children: A Birth Cohort Study.”
Although the study itself has not yet been publicly released, Siri’s key findings presented under oath in the U.S. Senate paint a devastating picture.
Key Findings
Children who received one or more vaccines compared to unvaccinated peers:
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📈 329% more asthma
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📈 203% more atopic disease
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📈 496% more autoimmune disease
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📈 453% more neurodevelopmental disorders
• 228% more developmental delays
• 347% more speech disorders
Even more striking: in conditions where unvaccinated children had zero cases — including brain dysfunction, ADHD, learning disabilities, intellectual disabilities, and tics — there were hundreds of cases among the vaccinated group.
The Devastating Bottom Line
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57% of vaccinated children developed at least one chronic health condition (often multiple).
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Only 17% of unvaccinated children were chronically ill.
A Kaplan–Meier survival curve from the study (first published by The HighWire) shows a steep collapse of disease-free survival in vaccinated children compared to their unvaccinated peers.
Why This Study Matters
The Henry Ford cohort study may be the most consequential vaccine safety study ever conducted in the United States. Its scale, length of follow-up, and use of electronic health records give it a weight that cannot be dismissed.
Yet, it was hidden from the public until now.
STAY TUNED: The Informed Consent Action Network (ICAN) and Del Bigtree have dedicated a full-length documentary, “An Inconvenient Study,” to unpacking the implications of this research. The film will premiere on October 3.
For decades, parents have asked for transparent, rigorous comparisons between vaccinated and unvaccinated children. This study finally provides that — and the results should send shockwaves through public health agencies, policymakers, and the medical community.
Sources:
The Focal Points, Courageous Discourse
The Highwire
An Inconvenient Study on X