Here‘s a page about the controversy around vaccination. In 1998, a guy named Andrew Wakefield implied that, because of his study on only 12 kids, measles-mumps-rubella vaccine causes autism. (I’m sure being paid $100,000 by trial lawyers made him totally impartial.) Alternative medicine people latched on to this idea. (They are very vocal.) Remember that this was around the beginning of the internet. Now 8 years later, if you search on google for “vaccination”, the top entry is a site about the “vaccination hoax”. This is a bit like searching google for 9/11 and finding the 9/11 conspiracy theory in the top 10. Anyway, here‘s a study of 27749 kids to see if thimerisol in vaccine causes autism. 27749 > 12