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11 h 48 m, 14 jun 1796 ano - El gran avance de Jenner

Descrição:

Edward Jenner (1749-1823), médico inglés, aprendió de una lechera que se creía protegida de la viruela porque había contraído viruela vacuna Jenner decidió probar la hipótesis.

Adicionado na linha do tempo:

Vacunación

ByReDCid UvU
16 nov 2017
0
0
417

Data:

11 h 48 m, 14 jun 1796 ano
Agora
~ 229 years ago

Imagens:

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