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25 oct 1917 año - Polio Outbreak
Descripción:
There were 27,000 cases of polio (and 6,000 deaths) between 1916 and 1917.
Añadido al timeline:
History of Pathogens
By
Mariah Kunz
14 dic 2018
1
0
416
fecha:
25 oct 1917 año
Ahora mismo
~ 106 years ago
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