A new scientific review by a World Health Organization (WHO) global expert committee has reaffirmed that there is no causal link between vaccines and autism spectrum disorders (ASD), reinforcing WHO’s long-standing position on vaccine safety.

The findings come from the Global Advisory Committee on Vaccine Safety (GACVS), an independent body established by WHO in 1999 to provide authoritative scientific advice on vaccine safety issues of global importance. The Committee brings together leading international experts in epidemiology, immunology, toxicology and public health to assess emerging evidence and address public concerns.

During its latest meeting on 27 November 2025, GACVS conducted a comprehensive review of the available scientific evidence on vaccines and ASD. The analysis focuse

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