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27 marzo 1798 anni - Vaccination

Descrizione:

The first vaccination attempt by Edward Jenner was inoculated on a boy using cowpox and successfully demonstrated immunity. In 1798, the first smallpox vaccine was developed.

Aggiunto al nastro di tempo:

Interactive Infectious Disease Timeline

ByWessam (Wes) Nakour
13 dic 2018
1
0
474

Data:

27 marzo 1798 anni
Adesso
~ 227 years ago
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