John Snow
| John Snow | |
|---|---|
 |
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| Born |
15 March 1813 York, United Kingdom |
| Died | 16 June 1858 (aged 45) London, United Kingdom |
| Citizenship | British |
| Nationality | English |
| Fields | Epidemiology |
| Alma mater | University of London |
| Known for | Anaesthesia, locating source of a cholera outbreak, thus establishing the disease as water-borne. |
John Snow (15 March 1813 – 16 June 1858) 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.
Snow was born on 15 March 1813 in York, England, the first of nine children born to William and Frances Snow in their North Street home, and was baptised at All Saints' Church, North Street, York. His father was a labourer who may have worked at a local coal yard, by the Ouse, probably constantly replenished from the Yorkshire coalfield by barges, but later was a farmer in a small village to the north of York.
The neighbourhood was one of the poorest in the city frequently in danger of flooding because of its proximity to the River Ouse. Growing up, Snow experienced unsanitary conditions and contamination in his hometown. Most of the streets were unsanitary and the river was contaminated by runoff water from market squares, cemeteries and sewage waste.
He demonstrated an aptitude for mathematics at a young age. In 1827, when he was 14 he obtained a medical apprenticeship with William Hardcastle in Newcastle-upon-Tyne. In 1832, during his time as a surgeon-apothecary apprentice, he encountered a cholera epidemic for the first time in Killingworth, a coal-mining village. Snow treated many victims of the disease and gained a lot of experience. Additionally, while he was an apprentice, Snow could not drink, gamble or marry. Eventually he adjusted to teetotalism and led a life characterized by abstinence, signing an abstinence pledge in 1835. Snow was also vegetarian and tried to only drink distilled water that was “pure”. Between 1833 and 1836 Snow worked as an assistant to a colliery surgeon, first in Burnopfield, County Durham, and then in Pateley Bridge, West Riding of Yorkshire. In October 1836 he enrolled at the Hunterian school of medicine on Great Windmill Street, London.
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