One Retracted Study, Endlessly Recycled
Vaccines Cause Autism
5/5The canard
“Vaccines — especially the MMR shot — cause autism in children.”
The whole scare rests on a single 1998 paper of twelve children — retracted, ruled fraudulent, its author struck off — while the real science checked millions of kids and found nothing. Here are the receipts.
The receipts
Vaccines do not cause autism. The 1998 study that launched the scare was fully retracted, found to be fraudulent, and cost its lead author his medical licence — and since then large cohort studies and meta-analyses covering millions of children have found no link between vaccines (including MMR) and autism.
- 1
The scare traces to one paper: Andrew Wakefield's 1998 study in The Lancet, based on just 12 children, which suggested a link between the MMR vaccine and autism. The Lancet fully retracted it in 2010 after the UK General Medical Council found Wakefield had acted dishonestly and against his patients' clinical interests, and he was struck off the medical register. A 2011 BMJ investigation by journalist Brian Deer concluded the study was not merely mistaken but 'an elaborate fraud' — patient records had been altered and Wakefield had undisclosed financial conflicts of interest.[1][2]
- 2
When large studies looked, they found nothing. A Danish cohort of 537,303 children (New England Journal of Medicine, 2002) found no higher autism risk in MMR-vaccinated children than in unvaccinated ones. A second, larger Danish cohort of 657,461 children (Annals of Internal Medicine, 2019) again found MMR did not increase autism risk — not even among children with autism-prone siblings or other risk factors.[3][4]
- 3
The finding holds across millions of children. A 2014 meta-analysis pooling data from more than 1.2 million children (published in Vaccine) found vaccines are not associated with autism, and specifically no relationship between the MMR vaccine, the preservative thimerosal, or mercury and the development of autism.[5]
- 4
The proposed mechanisms don't hold up. The thimerosal (mercury-preservative) theory failed when autism diagnoses kept rising after thimerosal was removed from routine childhood vaccines around 2001, and a review by CDC scientists summarizing the full body of evidence concluded there is no link between MMR vaccination and autism. Autism's signs are often first noticed around the age children get routine shots — a coincidence in timing, not causation.[6][5]
Sources
- [1]Retraction—Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children — The Lancet (2010)The Lancet's full retraction of Wakefield et al. (1998), the original 12-child paper behind the MMR–autism scare, after the UK General Medical Council found its claims false and its conduct unethical. (doi.org resolves to thelancet.com.)
- [2]How the case against the MMR vaccine was fixed. Brian Deer — BMJ (342:c5347) (2011)BMJ investigation documenting that the Wakefield study was 'an elaborate fraud' — altered patient data and undisclosed financial conflicts of interest. (doi.org resolves to bmj.com.)
- [3]A Population-Based Study of Measles, Mumps, and Rubella Vaccination and Autism. Madsen KM, et al. — New England Journal of Medicine (347:1477–1482) (2002)Danish retrospective cohort of 537,303 children: no higher risk of autism among MMR-vaccinated children. (doi.org resolves to nejm.org.)
- [4]Measles, Mumps, Rubella Vaccination and Autism: A Nationwide Cohort Study. Hviid A, Hansen JV, Frisch M, Melbye M — Annals of Internal Medicine (170:513–520) (2019)Danish nationwide cohort of 657,461 children: MMR vaccination did not increase autism risk, including in higher-risk subgroups. (doi.org resolves to acpjournals.org, which blocks automated fetchers but loads in a browser.)
- [5]Vaccines are not associated with autism: An evidence-based meta-analysis of case-control and cohort studies. Taylor LE, Swerdfeger AL, Eslick GD — Vaccine (32(29):3623–3629) (2014)Meta-analysis of more than 1.2 million children finding no association between vaccination (or MMR, thimerosal, or mercury) and autism. (doi.org resolves to sciencedirect.com.)
- [6]The MMR Vaccine and Autism. DeStefano F, Shimabukuro TT — Annual Review of Virology (6:585–600) (2019)Review by CDC scientists summarizing the evidence and concluding there is no link between MMR vaccination and autism, and that the thimerosal hypothesis is likewise unsupported.
Send the duck
Drop this link under the post, or export a card for your story.
Paste the link under the post. It unfurls into a card; the page does the rest.
More canards to send
Men Start All Wars
“All wars have been started by men.”
The Hummus Heist
“Israelis and Jews stole Arab food like hummus and falafel — they have no cuisine of their own.”
They Stole the Music Too?
“Israelis and Jews stole Arab music.”
This page debunks a false claim using sourced evidence. The target is the claim — never any person or community. Sources are linked above so you can verify every point yourself.