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9 jan 1952 ano - Polio

Descrição:

Jonas Salk develops first Polio Vaccine which is an inactive version of Polio and is administered via injection by trained health professionals, but is expensive.

Adicionado na linha do tempo:

Diseases and Discoveries Related That Have Impacted Recorded Human History

ByTommy Chhoeum
14 dez 2018
1
0
926

Data:

9 jan 1952 ano
Agora
~ 73 years ago
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