Study Finds 250% Increase in Chronic Disease in Vaccinated Children
- Sarah
- Sep 25
- 3 min read
Updated: Sep 26
As a natural healthcare practitioner and mother, I believe informed consent is of paramount importance when parents are making decisions for the health and well-being of their children. That's why I want to share an important study with you. This study looked at rates of chronic disease in vaccinated vs. unvaccinated children, and the results are staggering.

Uncovering the Study
The study, Impact of Childhood Vaccination on Short and Long-Term Chronic Health Outcomes in Children, was completed about 5 years ago but it is just now coming to light. On September 9th 2025, this study was made public in an official hearing of the Permanent Committee on Investigations of the United State Senate. The study was performed by scientists and doctors at the Henry Ford Health System, which is considered to be one of the best medical institutions in the country.
According to witness testimony from Aaron Siri at the Senate hearing, the study was undertaken with the goal of proving that those who claimed harms from vaccination were wrong. Given the results of the study, it is not surprising that the study authors chose not to seek publication, because the study found exactly the opposite of what they had set out to prove.
Study Found Greatly Increased Rates of Chronic Disease in Vaccinated Children
Instead of proving that vaccines do not cause increased chronic disease, the study found that vaccinated children suffered from chronic disease at rates 250% higher than unvaccinated children. The data came straight from the Health System documents showing vaccination records, chronic disease diagnosis, and treatment.
The study concluded that "exposure to vaccination was independently associated with an overall 2.5-fold increase in the likelihood of developing a chronic health condition, when compared to children unexposed to vaccination. This association was driven primarily by asthma, atopic disease [allergies], eczema, autoimmune disease and neurodevelopmental disorders [such as ADHD, developmental delay, speech disorders, etc]."

Let's Dig Deeper Into the Data
The study included data from 2000-2017 for a total of 18,468 children, including:
16,511 children who had received at least one vaccination
1,957 children who had no exposure to vaccination

Please be careful when looking at this data, as the meaning is not clear at first glance. The number of incidents N is NOT a good comparison point between the vaccinated and unvaccinated. There were ~8 times as many vaccinated children in the study as there were unvaccinated children. The really important numbers to look at are the numbers in parentheses (Incidence per 1,000,000 pt-yrs).
Also note that, for conditions that are more rare (such as tics, autism, and diabetes), the dataset will be less reliable in detecting actual differences between the vaccinated and unvaccinated populations.

Additional Conclusions from the Study
"Vaccine exposure was independently associated with an increased risk of asthma, eczema, atopic and autoimmune disease, and neurodevelopmental disorders including developmental delay and speech disorder...
"Incident rate ratios and hazard ratios could not be calculated for brain dysfunction, diabetes, ADHD, tics, or behavioral, learning, intellectual, or other psychological disability since all cases occurred in the group exposed to vaccination and no cases occurred in the unexposed group....
"...the overall probability of being free of a chronic health condition at 10-years of follow up was 43% in the group exposed to vaccination and 83% in the unexposed group"
You can download the full study here:
Disclaimer
I am not a doctor or licensed healthcare professional. I am a homeopathic practitioner whose services are considered complementary and alternative by the state of New Mexico. The information described herein is provided for educational use only and is not a substitute for medical treatment.