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1 ore 23 min, 1 sett 1847 anni - Ignaz Semmelwis Discovery

Descrizione:

-Discovered that hand washing reduces infection

Aggiunto al nastro di tempo:

Disease Timeline

ByKim Nguyen
14 dic 2018

Data:

1 ore 23 min, 1 sett 1847 anni
Adesso
~ 176 years ago
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