Friday, November 8, 2013

Escherichia Coli

Escherichia Coli is a large, diverse group of bacteria of the Enterobacteriaceae family. A German physician named Dr. Theodore Escherich discovered it in 1885. The genus is composed of gram-negative, aerobic, facultatively anaerobic, non-spore forming rods. The existences usual habitat is the digestive tracts of humans and animals. Escherichia Coli is a beneficial function in the human body because it synthesizes useful vitamins such as Vitamin K. E. coli also acts as competition in the intestine by suppressing the growth of unhealthful bacteria that may be present or ingested. Escherichia Coli is considered an opportunistic pathogen because generally it is a harmless bacteria, exactly when the intestinal barriers atomic number 18 compromised, even off regular E. coli weed cause infections. Other E. coli cultivate on acquired acrimony factors and jackpot cause disease even in healthy people. They are known as pathogenic E. coli and there are sixer main groups: enter opathogenic, enterotoxigenic, enterohemorragic, enteroinvasive, enteroaggregative, and diffusely adherent. We go forth discuss these much in detail later on. every infections with pathogenic E. coli begin with resolution of intestinal mucosa. This is followed by the virulence factors that cause the symptoms. The prototypic pathogenic E. coli group to discuss is Enteropathogenic.
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It was first characterized in 1955 and is about usually associated with infant play. In actual countries with good hygiene respectable it is not as ballpark, but in developing countries it is more prevalent. Water is a honey o il vehicle of transmission, but it can also ! be lay down in a novelty of foods such as unrefined beef and chicken. Contact with sister feces and use of polluted water is another common mode of transportation. After using up of the bacteria there is an median(a) of 36 hours incubation period onwards the onset of illness. The most predominant symptom is severe diarrhea with watery stools that have large amounts of mucous but rarely blood. Other symptoms are...If you pauperization to get a full essay, rate it on our website: OrderCustomPaper.com

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