Senate hearing spotlights unpublished Henry Ford birth‑cohort study alleging higher chronic illness rates in vaccinated children

A Senate Permanent Subcommittee on Investigations hearing on research integrity turned to an unpublished Henry Ford Health System study that attorney Aaron Siri presented as a large vaccinated‑versus‑unvaccinated birth‑cohort analysis.

Siri told the committee the Henry Ford study compared children born from 2000 to 2016 and included 18,468 subjects. He said the study "found vaccinated children had 4.29 times the rate of asthma, 3.03 times the rate of atopic disease, 5.96 times the rate of autoimmune disease, and 5.53 times the rate of neurodevelopmental disorders," and that the paper showed vaccinated children had chronic health issues at a rate of about 57 percent versus 17 percent in the unvaccinated cohort.

The study and whether it was suppressed were a focal point for proponents of additional vaccine safety research. Senator Ron Johnson, who convened the hearing, said he had "asked the…