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3 mars 1854 - John Snow

Description:

John Snow, known as the father of epidemiology, discovered cholera was coming from a well in a neighborhood that was contaminated with cholera. He broke off the pump to the well and infection rates dropped

Ajouté au bande de temps:

14 déc. 2018
1
0
523

Date:

3 mars 1854
Maintenaint
~ Il y a 171 ans