Escherichi coli

Scientific classification

Domain:	Bacteria
Phylum:	Proteobacteria
Class:	Gammaproteobacteria
Order:	Enterobacteriales
Family:	Enterobacteriaceae
Genus:	Escherichia
Species:	E. coli

 

Escherichi coli is a normal inhabitant of the human digestive tract, some E.coli caused iarrheae diseases in humans.

Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhea or illness outside of the intestinal tract. The types of E. coli that can cause diarrhea can be transmitted through contaminated water or food, or through contact with animals or persons

These pathogenic E.coli are classed nto five groups:-

• ·         Enterotoxigenic (ETEC)
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• ·         Enterohemorrhagic (EHEC)
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• ·         Enteroinvasive (EIEC)
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• ·         Enteropathogenic (EPEC)
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• ·         Enteroadherent-aggregative (EA-AggEC) new Reconized Group. This is aggregative or “Stacked-brick” like aherence to cultured mammalian cells.

Pathogenic E.coli can be devided on the basis of serology but, because they are classedon the basis of pathogenic factors.