By Kai Kupferschmidt In perhaps the most famous example of shoe-leather epidemiology, U.K. physician John Snow mapped cholera cases in London in 1854 to pinpoint a water pump on Broad Street as the […]
By Kai Kupferschmidt In perhaps the most famous example of shoe-leather epidemiology, U.K. physician John Snow mapped cholera cases in London in 1854 to pinpoint a water pump on Broad Street as the […]