India, Dec. 12 -- A World Health Organization (WHO) expert committee has again confirmed that there is no causal link between vaccines and autism spectrum disorders (ASD), following a new review of global scientific evidence.

Meeting on 27 November, the WHO Global Advisory Committee on Vaccine Safety examined 31 major research studies published between 2010 and August 2025.

The analysis covered data from multiple countries and looked both at vaccines in general and at those containing thiomersal - a preservative sometimes used to prevent contamination in multi-dose vials.

According to the committee, the latest review "strongly supports the positive safety profile of vaccines used during childhood and pregnancy" and "confirms the absenc...