Question

who discovered smallpox vaccine? How?​

Answer 1

smallpox vaccine is discovered by Edward jenner

Answer 2

Hey Mate

your answer is..........

Edward Jenner .......

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Smallpox vaccine was introduced by Edward Jenner in 1798. He observed that milkmaids who had previously caught cowpox did not later catch smallpox by showing that inoculated cowpox protected against inoculated smallpox. Smallpox vaccine was the first successful vaccine.

hope it helps you