Which physician discovered that contaminated water was the source of the cholera epidemic in London in 1854?

Robert Koch
Alexander Fleming
John Snow
Thomas Hodgkin
John Snow was an English physi­cian and a leader in the adoption of anaes­the­sia and medical hygiene. He is con­sid­ered one of the fathers of modern epi­demi­ol­o­gy, in part because of his work in tracing the source of a cholera outbreak in Soho, London, in 1854. His findings inspired fun­da­men­tal changes in the water and waste systems of London, which led to similar changes in other cities, and a sig­nif­i­cant im­prove­ment in general public health around the world.

Answers distribution

Robert Koch
Alexander Fleming
John Snow
Thomas Hodgkin
answers
flagthe Netherlands
20%
13%
60%
6%
15
flagthe United States
26%
33%
40%
0%
15
flagFrance
30%
10%
40%
20%
10
flagGermany
26%
31%
26%
15%
19
flagPoland
27%
30%
23%
19%
1573
flagthe United Kingdom
22%
35%
19%
22%
31
flagUnknown
30%
35%
16%
17%
262
flagItaly
30%
50%
10%
10%
10

Gender

men22%
women18%
Robert Koch
27%
32%
Alexander Fleming
31%
30%
John Snow
22%
18%
Thomas Hodgkin
18%
17%

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Which physician discovered that contaminated water was the source of the cholera epidemic in London in 1854?
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Author: Tschuka
Illustration: CDC Global
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