3EscherichiaKlebsiellaProteusEnterobacterAll are member of Enterobacteriaceae familyRod shapeGram negativeFacultative anaerob
4Genus Vibrio belong to the family of Vibrionaceae Curve rod shape Gram negativeFacultative anaerobOne single polar flagel
5Escherichia coli Found by Theodor Escherich ( Austrian ) 1882 Bacteria coli communeNormal inhabitant of intestinal human and warm blooded animalBy the time proceed it is also in process of adaptation and change
6It is used as standard for fecal contamination. Water quality for household purpose.MPN test / Index.Lactose fermenter
8Enteropathogenic E coli Infantile diarrheaAttachment to immature intestinal mucosal cellsDestruction of mucosal villiCausing diarrhea followed by fever and ictericFatal infection especially on neglected labor.
9Enterotoxigenic E. coli (ETEC) Produced Enterotoxin.Plasmid mediated enterotoxin production.There are 2 kind of Toxins : Lt ( Labile toxin )St ( Stable toxin)
12Enteroinvasive Escherichia coli (EIEC) Site of infection mucosal cells layer of Colon.Shigella like infection.Shiga like toxin – toxic to colonic mucosal cells- necrosis—ulcers—bleeding ( Blooded diarrhea), fever – tenesmus ani ( Trias Bacillar Dysentery)
13Enterohemorrrhagic E coli EHEC Firstly dairy product contamination, meat on refrigerator—Produce toxin ( Shiga like toxin )—strain O157 H7—Fever, diarrhea, abdominal cramp-Hemolytic uremic syndrome.Newly strain O104 H4, outbreak in German ,May 31 found 470 cases with HUS---9 deaths. Raw lettuce, cucumber and tomatoes.
14Enteroadherent E coli Multilayer colonization on intestinal mucose. Biofilm formationInhibit water and nutrition absorbtion.Malabsorbtion syndrome.