It all started with the publication of a single paper in the journal The Lancet in 1998; a study of 12 children exhibiting autism spectrum disorder with symptoms that began shortly after the administration of the MMR vaccine in the UK. The primary author of the paper was Andrew Wakefield, a man who had filed a patent for an alternative measles-mumps vaccine, and who had recieved funding from individuals involved in litigation against vaccine manufacturers, though neither of these conflicts of interest had been declared prior to publication.
Despite the issues with the study itself (which are damning and numerous), and despite the fact that the study has since been retracted, both by its co-authors, and The Lancet's editor's, the anti-vaccine hysteria it set in motion has yet to die down. The science states that there is no grounds for the autism-vaccine link. Science in Seconds says it again.
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Host: Brit Trogen
Photo credits: Wikimedia users Gamerscoreblog, Angela George, David Shankbone, Sam Pullara and Rick Kimpel
References:
http://www.autism-watch.org/news/lancet.shtml
http://www.nytimes.com/2010/03/13/science/13vaccine.html
http://sciencebasedmedicine.org/reference/vaccines-and-autism/#Key%20Research
http://www.sciencebasedmedicine.org/?p=3941 - the topic is covered extensively here