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5 окт 1796 г. - Edward Jenner

Описание:

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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5 окт 1796 г.
Сейчас
~ 229 г назад

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