This what happens when you vaccinate in a society:


If you want to know what happens when enough individuals in a society opt out of vaccination, I have some articles about the current measles outbreak I could send you...

For the people who got measles at Disneyland, out of the California victims for whom vaccination data could be verified, 82% were not vaccinated.

refs (accessed 28 Jan 15):

  • (it's their graphic which I redrew to improve clarity)