In the mid-19th century, the Soho district of London had a serious problem with filth due to the large influx of people and a lack of proper sanitary services: the London sewer system had not reached Soho and the wastes were dumped into River Thames.This action contaminated the water supply, leading to the cholera outbreak.
This is when Dr John Snow stepped in. By talking to local residents, he identified the source of the outbreak as the public water pump on Broad Street and later used a spot map to illustrate how cases of cholera were centred on the Broad Street Pump. His identification of the Broad Street pump as the cause of the Soho epidemic is considered the classic example of epidemiology. This video is my humble attempt at recreating this piece of history and analysing the findings.
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