Vaccine critic’s apparent selection to head HHS autism study shocks experts
Like RFK Jr., David Geier has long clung to debunked assertions, scientists say
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By Helen Branswell
March 26, 2025
Senior Writer, Infectious Diseases
News that a major player in the anti-vaccine community may have been tasked by the Department of Health and Human Services to conduct a study looking for a link between immunizations and autism has been met with incredulity and dropped jaws among vaccine experts and others familiar with the anti-vaccine movement.
The apparent choice of David Geier — who does not have a medical degree and who was disciplined by the State of Maryland’s Board of Physicians for practicing medicine without a license — to conduct a study looking for the link that HHS Secretary Robert F. Kennedy Jr. has long asserted exists, despite mountains of evidence to the contrary, struck many as a surreal choice.
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Geier and his father, a physician who lost his medical license in multiple states, promoted claims that use of the preservative thimerosal in vaccines led to an increase in autism diagnoses. A raft of studies has refuted the allegation, and autism rates have not declined in the more than 20 yearssince thimerosal was phased out of most vaccines in the United States. For a time, the two treated autistic children with unproven therapies, including a drug licensed for prostate cancer that induces chemical castration.