Maps, Pandemics and Reckoning With History
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Medical Xpress
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As cholera claimed hundreds of thousands of lives during the 1846-1860 pandemic, John Snow was the first person to figure out how the deadly disease was spreading. By plotting the locations of deaths in London's Broad Street, Snow discovered a link between cholera cases and contaminated water sources, and his now famous yet simple dot map is considered by many to be the start of the field of epidemiology.
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