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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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30 abr 1796 ano - Jenner performed key experiment

Descrição:

treated lady for cowpox then transferred fluid from pustule on her arm to young boy who recovered after 9 days. when innoculated with smallpox he showed no symptoms

Adicionado na linha do tempo:

History of Medicine

Bylisa
14 dez 2017
0
0
790

Data:

30 abr 1796 ano
Agora
~ 228 years ago
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