Cholera John Snow Map. John Snow’s Interactive Cholera Map Victor A. Mateevitsi, PhD At the time, most people believed that cholera was spread through the air By seeing, visually, where the cholera deaths were clustered, Snow showed that the water from a pump on Broad Street was to blame
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John Snow's map of the 1854 London cholera outbreak was revolutionary in that it clearly drew a visual connection between deaths and the locations of well pumps Snow's map of the Cholera outbreak of 1854, and the reports that it accompanied, eventually won over the medical community of the day, as well as the burgeoning public health system in London, and by the time London saw another outbreak of Cholera, most had been convinced.
This led to three positive changes: the water pump was disabled, preventing further deaths, cholera was identified as a waterborne disease, and efforts began to improve water and waste systems in London. Snow's work on cholera illustrates, perhaps better than any other body of writings, a key epidemiologic principle: that the most important information to have about any communicable disease is its mode of communication."[4] Snow's maps also reflect a creative additive to the visualization of the spread of Cholera in the mid 1850's. His work addressed an ongoing medical debate — in what is widely regarded as one of the most.
John Snow’s Interactive Cholera Map Victor A. Mateevitsi, PhD. Looking at John Snow's Cholera map from the twenty first century: A practical primer on reproducibility and open science A more recent example of cholera spread was in April of 2000 when an outbreak in Micronesia infected thousands of people.
. By seeing, visually, where the cholera deaths were clustered, Snow showed that the water from a pump on Broad Street was to blame John Snow's map was able to spatially associate cholera cases with a single contaminated water pump