1 ene 1854 año - John Snow traces cholera outbreak
Descripción:
Snow suggested cholera to be caused by consuming feces. Traced the outbreak in London to the Broad Street Pump. The "Father of Epidemiology" (pictured: map of London marking homes affected by cholera)
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fecha:
1 ene 1854 año
Ahora mismo
~ 170 years ago
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