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26 mar 1953 ano - Polio

Descrição:

Dr. Jonas Salk tells the public that he's come up with a vaccination for Polio. In April of 1955 it was said that his vaccination for it was effective and safe.

Adicionado na linha do tempo:

Historical events

ByHailey Wessel
14 dez 2017
0
0
448

Data:

26 mar 1953 ano
Agora
~ 72 years ago

Imagens:

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