The entirety of the anti-vaccination movement is utterly bizarre. What possible reason would you have to willingly refuse something that has improved so much of Mankind's health throughout history and has millions of safe users every year? Both Smallpox and Rinderpest (a cattle disease) have been erradicated through vaccines, and a bunch of other diseases are in their way out because of them.
In this special case, the belief that vaccinations can cause Autism. The restmostly comes from the red scare in the 50s, where vaccines were told to be poison and a ploy from the USSR to get the US into socialized medicine. No joke.
Just check the Polio serum part and judge for yourself
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