"An account of the worst cholera outbreak in Victorian London--and an exploration of how Dr. John Snow's solution revolutionized the way we think about disease in cities. In the summer of 1854, a devastating cholera outbreak seized London just as it was emerging as a modern city: more than 2 million people packed into a ten-mile circumference, a hub of travel and commerce, continually pushing the limits of infrastructure that's outdated as soon as...