HLTB21H3 Lecture Notes - Water Purification, Louis Pasteur, Chorea

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Believed in the germ theory" announced by pasteur (1862) Diseases spread from person to person by an infectious agent. Factor in air (x) and factor in soil (y) didn"t independently cause disease but when reacted together caused miasma that caused disease. Steadfastly refused to believe in the germ theory. May had have experienced chlorea and had some sort of immunity. History of cholera is described as the history of pandemics. 7 pandemics: 1816 1821: originated in india (river ganges) and was spread by mainly by british troops, headquarters in. 1831 mortality of 13% in cairo, egypt. 1832 3: 60,000 death in england disease known as king cholera". 1992: aboard a flight from s america to the us. 1994: zaire, killed 50,000 rwandan refugees in 21 days. Countries/areas reporting cholera and cases reported, by year, 1993 2003. Koch dispatched to egypt to isolate the microbe. Able to see the bacteria in feces of 12 patients.

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