HLTB21H3 Lecture Notes - Lecture 9: Germ Theory Of Disease, Cholera Toxin, Serotype

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31 Oct 2010
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Steadfastly refused to believe in the germ thoery. Drunk a vial of bacteria contaminated water. Believed the germ theory" announced by pasteur (1862) Diseases spread from person to person by an infectious agent. History of cholera is described as the history of pandemics. 1) 1816-1821: originated in india (river gangs) and was spread by mainly by british troops, headquaters in bengal. 2) 1829-1851: more widespread, reaching europe, canada, and the us. 1832-3: 60,000 deaths in england - disease known as king cholera". 3) 1852-1859: scienti c advances in understanding cholera. 5) 1881-1896: hygienic measures stopped its spread to n america. 6) 1899-1923: for teh most part missed the western hemisphere. 1992: aboard a ight from s america to the us. 1994: zaire, killed 50,000 rwandan refugees in 21 days. Koch dispatched to egypt to isolate the microbe. Able to see the bacteria in feces of 12 patients. Vibrio cholerae (due to its vibrating wiggles)

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