Waterborne cholera transmission (John Snow)
Transmisión del cólera por el agua (epidemiología)
- Date
- 1854 · confidence high
- Place
- Broad Street, Soho, London, England
- Credited to
- John Snow
- People
- 👤 John Snow1813–1858
- Field
- Life & health
What was discovered
By mapping cholera deaths in Soho, Snow linked them to the Broad Street pump and showed that cholera was transmitted by contaminated water, not by miasmas.
What it led to
- modern epidemiology
- urban sanitation and sewerage (Bazalgette)
- safe drinking water supply
- data-based public health
Built on
- William Farr's vital statistics
Made possible
- Cholera bacillus (Vibrio cholerae)1883-1884
- epidemiological mapping
- water chlorination