![]() it helped change how disease was tracked as well as portray the point he used to convince people the disease was waterborn broad street water pump a very popular pump in the soho district of london contaminated by dirty water from dirty diapers from the Lewis family. He was a part of the Cholera committee who discovered true cause of cholera John Snow and Henry Whitehead what was the ghost map? a powerful map developed by snow which illustrated where there were land marks such as certain pumps and a population radius of infected individuals. Benjamin Hall Began believing in Miasma theory, but then switched to waterborne theory. ![]() What was initially thought to be the method of contraction? the stench, however it is waterborne and residents contract it through drinking the water What is the miasma theory? a noxious form of "bad air," also known as "night air." Edmund Cooper Used a map to record deaths in London. ![]()
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