14 jan 1796 ano - Edward Jenner Makes a Smallpox Vaccine

Descrição:

Based around using the cousin to smallpox called cowpox, English doctor Edward Jenner used a little boy named Phillip to test his smallpox vaccine. Luckily for the boy it worked. It was not until the 1880's that the virus used for the smallpox vaccine was changed to a different virus.

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