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26 mars 1953 - Polio

Description:

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.

Ajouté au bande de temps:

14 déc. 2017
0
0
448

Date:

26 mars 1953
Maintenaint
~ Il y a 72 ans

Les images: