Similarly, descriptions of cancer go back thousands of years but cancer is still by and large a modern disease mankind has inflicted upon itself.
Check out the statistics for autism before and after vaccinations. Now there is an area that pro-vaxxers are not nearly so quick to claim credit for as they are the historical declining rates in the diseases vaccines attempt to hog all of the glory for.
BTW, does calling others names somehow make you feel superior or is it just another sign of the sickness inside? Too bad they don't have a vaccine for that.