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23 фев 1796 г. - Edward Jenner

Описание:

Discovered the vaccine for smallpox by inserting scrapings of cowpox material into the skin of James Phipps, the son of his gardener.

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Timeline on Deadly Diseases of the World

14 дек 2018

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23 фев 1796 г.

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~ 229 г назад

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