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Fact check

Is it true: RFK Jr. anti-vaccine activism / Children's Health Defense (1998-present)?

Debunked5% confidence

No — this has been debunked.

The vaccine-autism claim derives from the Wakefield 1998 Lancet paper, retracted 2010 after confirmed data fabrication; Wakefield struck off by the GMC. The thimerosal-mercury hypothesis was refuted by the 2004 IOM report and Hviid et al. 2003 (NEJM, n=530,000) among numerous subsequent studies. Autism rates rose after thimerosal removal, directly contradicting the hypothesis. No causal link between MMR vaccination and autism has been established in the peer-reviewed literature.

The claim

Robert F. Kennedy Jr. has promoted vaccine-autism and vaccine-injury claims since the early 2000s, founding the World Mercury Project (later Children's Health Defense) to advance those claims. The fou

Key evidence

Vaccine-injury claims have generated sustained parental concern despite refutation

Wakefield 1998 Lancet paper retracted 2010 — data fabrication confirmed

Read the full evidence file

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