PARALLEL EVOLUTION OR MYTH? “The record shows that it was there that Jenner heard a dairymaid say, “I shall never have smallpox for I have had cowpox. I shall never have an ugly pockmarked face.” It fact, it was a common belief that dairymaids were in some way protected from smallpox.”
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linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022