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> RECORD OBS-0115 | status: DEBUNKED | filed 2026-07-31
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MMR Vaccine Causes Autism

RecordOBS-0115
CategoryHealth/Vaccines
StatusDEBUNKED
SummaryThe claim that the MMR vaccine causes autism originated from a 1998 paper by Andrew Wakefield and colleagues published in The Lancet. The paper described 12 children with developmental regression and gastrointestinal issues, with parents associating onset with MMR vaccination. The paper was later retracted due to fraud and ethical violations, and extensive epidemiological studies have found no link.
Origin1998, United Kingdom, from a paper by Andrew Wakefield et al. in The Lancet.
Claimed
  • MMR vaccine causes autism in children.
  • The vaccine leads to intestinal inflammation and developmental regression.
  • Parents of eight of 12 children in the study associated autism onset with MMR vaccination.
Evidence / consensusThe original study was retracted due to fraud and ethical misconduct. Large-scale epidemiological studies have consistently found no association between MMR vaccination and autism. Major health organizations, including the CDC and WHO, affirm vaccine safety.
> OBSERVER NOTE:
A classic case of a single fraudulent paper causing global vaccine hesitancy. The retraction and subsequent studies have thoroughly debunked the link, yet the myth persists in public discourse.

Sources

  1. Lancet retracts 12-year-old article linking autism to MMR vaccines - PMC
  2. The MMR vaccine and autism: Sensation, refutation, retraction, and fraud - PMC
  3. Vaccines Do Not Cause Autism | Johns Hopkins | Bloomberg School of Public Health
  4. Vaccines and autism | Children's Hospital of Philadelphia

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.