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9 Jan 1952 Jahr - Polio

Beschreibung:

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.

Zugefügt zum Band der Zeit:

Diseases and Discoveries Related That Have Impacted Recorded Human History

ByTommy Chhoeum
14 Dez 2018
1
0
924

Datum:

9 Jan 1952 Jahr
Jetzt
~ 73 years ago
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