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27 mar 1798 ano - Vaccination

Descrição:

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.

Adicionado na linha do tempo:

Interactive Infectious Disease Timeline

ByWessam (Wes) Nakour
13 dez 2018
1
0
473

Data:

27 mar 1798 ano
Agora
~ 227 years ago
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