Travelers Beware! Do not drink the local   wet or milk. Cook all foods that may  have been  loose to water. Do not eat uncooked salads, fresh fruit, or shellfish. Why are  so  many another(prenominal) travelers to third  universe countries  abbreviateting these warnings? The answer is simple,  due to the infectious  bacteriuml disease  cognize as  epidemic cholera.  Cholera is caused when the  bacterium vibrion cholerae infects the  microscopical intestine. A  more precise name for the region infected is the gastrointestinal area. The bacterium itself  is small, and comma-shaped (see appendix p.7 ). vibrion cholerae is a  gram-negative  bacteria that is a pathogen of humans. The bacteria moves by means of flagellum. The  bacterium produces a toxin that causes the small intestine to secrete fluids,  lead story to  regurgitation and diarrhea. The life cycle of the cholera bacterium is simple; Vibrio cholera  reproduces by binary fission, a form of nonsexual reproduction. The genus, Vib   rio, are  typically  leatherneck organisms that are found on the surface of the water. The cholera bacteria  is  ordinarily found in the same water as feces. The bacteria,  one time ingested by humans, begins  to produce a Cholera toxin. Cholera toxin activates  special enzymes in intestinal cells,  which leads to the secretion of fluids into the small intestine, causing symptoms like  diarrhea.

   close to of the bacterium are not able to survive the secretions and   foremost base pH of the  stomach; after the release of the Cholera toxin, the bacterium  usually die.  The first true case of cholera was recorded in Eur   ope in 1830 and again, in 1848,  1854, 1865,!    1884, and 1892. During the  frightening London  pestiferous of 1854, John Snow,  proved cholera to be a waterborne disease,  done epidemiological means. The first   major U.S. epidemic occurred in the Mississippi Valley from 1870-1873. In 1884, Robert  Koch, a German scientist, discovered Vibrio cholerae as...                                        If you want to get a full essay, order it on our website: 
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