Quote:
Originally Posted by peter12
I didn't say vaccines didn't help, I said they were not primarily responsible for the reduction in disease, such as MMR. We're talking something like <5%, if I remember my single medical anthropology class correctly.
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It's a lot more than 5% - if you look at the Stats Canada data for measles (for example) the incidence rate plummeted after the MMR vaccine became widespread. It went from 300,000 to 400,000 cases annually with no real changes in incidence from the 1920's to the 1960's, to about 10 cases annually.