This tale of John Snow, a researcher who sought the cause of a massive and lethal outbreak of what would ultimately be known as Cholera, in 1850s England, does a fine job of illustrating life and the habits that led to the outbreak, as well as the fear and helplessness of people who lived whilst the scourge was underway. Snow's dogged efforts to locate the origins and "map" the outbreak, as well as his frustrations with public officials, who were slow to move away from erroneous, but more accepted, ideas about the source of cholera, have shaped public health policies for growing cities since. He also helped devise early anesthesia at a time when surgeons worked without it. Given a 4 (4.5 really) for the story because the conclusion gets a bit long. Still, this work is very interesting and we all owe much to Mr. Snow, especially when we sip a refreshing glass of water from the tap.
I loved that Mr. Snow's work was validated by other scientists. It also was pretty amazing to see someone focus so fully on stopping this disease.
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