WHO review confirms vaccines do not cause autism despite enduring misinformation

A comprehensive review by the World Health Organization and large-scale studies reaffirm that vaccines are not linked to autism, despite persistent myths rooted in flawed research and misperceptions.

Vaccines do not cause autism, and that conclusion has been repeatedly reinforced by major health authorities and large studies. The World Health Organization’s Global Advisory Committee on Vaccine Safety said in December 2025 that its review of 31 studies published between January 2010 and August 2025 found no causal link between vaccines and autism spectrum disorders. The committee said the evidence continues to support the safety of childhood and pregnancy vaccines.

The claim that vaccines might be partly responsible for autism traces back to a 1998 paper by Andrew Wakefield, which suggested a connection between the MMR jab and autistic symptoms in eight children. The paper was later retracted by The Lancet after serious concerns were raised about dishonesty and ethical breaches, and Wakefield subsequently lost his medical licence. Even so, the idea took hold in public debate and has proved difficult to dislodge.

That is largely because autism is often misunderstood. Researchers say the apparent rise in diagnoses over time is better explained by broader diagnostic criteria, greater awareness and improved testing, rather than a single environmental cause. A 2014 meta-analysis in the journal Vaccine, which examined case-control and cohort studies, also concluded that vaccines are not associated with autism.

For parents and caregivers, the practical message is straightforward: the scientific consensus remains that routine immunisation does not cause autism. The WHO’s latest review, along with earlier large-scale studies and the retraction of Wakefield’s paper, leaves no credible evidence that childhood vaccines are a cause, in whole or in part, of autism spectrum disorder.