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John Snow Essays

Mike Jay on John Snow and the Soho Cholera Outbreak of 1854

John Snow pioneered new epidemiological methods to identify the source of the cholera epidemic in London. At a time when disease was believed to spread through miasmas or bad air, Snow hypothesized that cholera was transmitted through contaminated water. To test this, he created one of the first disease maps, plotting cholera deaths around water ... Read More
Pages: 3       Words: 653
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