New Peer-Reviewed Report Exposes Flaws in Danish Study Claiming Aluminum in Vaccines Is Safe

A study by Danish researchers who said they found no link between aluminum in vaccines and autism was flawed, according to a new peer-reviewed report.

The report, by a dozen leading scientists and thought leaders in aluminum toxicology and vaccine injuries, concluded that the Danish study failed to establish the safety of aluminum in vaccines.

The original study, published July 15, 2025, in Annals of Internal Medicine, lacked understanding of aluminum toxicology, was poorly designed, used statistical adjustments that likely obscured aluminum’s actual impact on children’s health outcomes and failed to adequately disclose potential conflicts of interest, according to the new report.

“These limitations are sufficiently serious to invalidate the authors’ conclusions,” the report’s lead author and associate professor at École Nationale Vétérinaire d’Alfort, Guillemette Crépeaux, Ph.D., told The Defender.

Despite the study’s weaknesses, the Danish researchers lauded their work as evidence of vaccine safety. The day before the study was published, lead author Anders Hviid, a professor and department head of epidemiology at the Statens Serum Institut, told MedPage Today, the results “provide robust evidence supporting the safety of childhood vaccines.”