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11 oct 1754 año - Edward Jenner (smallpox, Variolation)

Descripción:

Jenner invented the first form of vaccination called Variolation, where skin infected with smallpox was placed into people to prevent the disease from forming.

Añadido al timeline:

Disease Timeline

ByJonnyP
14 dic 2018
1
0
459

fecha:

11 oct 1754 año
Ahora mismo
~ 270 years ago

Fotos:

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