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Unformatted text preview: Snow noted that a majority of the people who contracted Cholera drank water that came from downstream. The data certainly seemed to fit well with his hypothesis. The next logical step was to ask another question: why did the water downstream seem more like to spread Cholera than the water from upstream? His conclusion was that the drinking water had become contaminated by sewage being dumped into the river. Even now, over 100 years later, it is easy to see that John Snow’s investigation into the cause of Cholera followed the scientific method taught today. He first observed the spread of Cholera, then formulated a question about it. Next, he came up with a hypothesis, and ways to test it. After collecting his data, he came to a logical conclusion, one that still holds true today. Sites: http://www.csiss.org/classics/content/8 http://courses.sph.unc.edu/john_snow/prologue.htm...
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- Fall '08
- Epidemiology, Drinking water, John Snow