5 oct 1796 año - Edward Jenner
Descripción:
Developed a vaccine for Smallpox. He inoculated cowpox into patients that had been exposed to Smallpox. Jenner proved this to work by using his gardeners son, James Phipps and injecting cowpox into the boy.
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fecha:
5 oct 1796 año
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~ 229 years ago
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