“Vaccines cause autism.”

The idea of a link between childhood vaccinations and autism spectrum disorder largely originated from a now-infamous 1998 study published in The Lancet medical journal. This paper, led by Andrew Wakefield, suggested a connection between the measles, mumps, and rubella (MMR) vaccine and autism. However, serious ethical violations and falsified data were later uncovered in Wakefield's research. The study was subsequently retracted by The Lancet, and Wakefield's medical license was revoked, effectively discrediting the original source of this widespread fear.

Following the retraction of the fraudulent 1998 study, extensive research has been conducted globally to investigate any potential link between vaccines and autism. Large-scale epidemiological studies involving millions of children in multiple countries have consistently found no causal relationship between the MMR vaccine, or any other vaccine, and the development of autism. Major international health organizations, including the World Health Organization and the Centers for Disease Control and Prevention, unequivocally state that vaccines do not cause autism.

Despite overwhelming scientific consensus, the misconception persists for several reasons. The initial fear generated by the fraudulent study, combined with the normal developmental timing of autism symptoms often appearing around the same age children receive routine vaccinations, can lead some parents to mistakenly associate the two. Misinformation spread through social media and anecdotal stories can also contribute to distrust in established medical science, making it difficult for some to accept the robust evidence that has debunked this myth.