enterohemorrhagic Escherichia coli


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.

en·ter·o·hem·or·rhag·ic Esch·e·rich·i·a co·li (EHEC),

enterohemorrhagic strains of Escherichia coli, commonly of the serotype 0157:H7; produces a toxin resembling that produced by Shigella; associated with damage to the epithelium, ischemia of the bowel, and necrosis of the colon. Apparently responsible for a hemorrhagic form of colitis without fever, which can be very severe; spread primarily by contaminated beef and poultry. May also cause microangiopathic hemolytic anemia, renal failure, and the hemolytic uremic syndrome.

enterohemorrhagic Escherichia coli (EHEC)

[-hem′ôraj′ik]
a strain of E. coli that causes hemorrhage in the intestines. The organism produces shiga toxin, which damages bowel tissue, causing intestinal ischemia and colonic necrosis. Symptoms are stomach cramping and bloody diarrhea. An infectious dose may be as low as 10 organisms. Spread by contaminated beef, unpasteurized milk and juice, sprouts, lettuce, and salami, as well as contaminated water, the infection can be serious although there may be no fever. Treatment consists of antibiotics and maintenance of fluid and electrolyte balance. In advanced cases, surgical removal of portions of the bowel may be required.

enterohemorrhagic Escherichia coli

EHEC Any of the E coli serotypes–eg O29, O39, O145 that produces shiga-like toxins, causing bloody inflammatory diarrhea, evoking a HUS. See Escherichia coli O157:H7, Hemolytic uremic syndrome.

en·ter·o·hem·or·rhag·ic Esch·e·rich·i·a co·li

(EHEC) (en'tĕr-ō-hem-ŏr-aj'ik esh-ĕ-rik'ē-ă kō'lī)
Strain of E. coli, usually of the serotype 0157:H7; produces a toxin resembling that produced by Shigella; associated with damage to the epithelium, ischemia of the bowel, and necrosis of the colon. Apparently responsible for a hemorrhagic form of colitis without fever, which can be very severe and is spread primarily by contaminated beef. May also cause microangiopathic hemolytic anemia, renal failure, and the hemolytic uremic syndrome.
References in periodicals archive ?
Fate of enterohemorrhagic Escherichia coli O157: H7 in apple cider with and without preservatives.
Enterohemorrhagic Escherichia coli OmpT regulates outer membrane vesicle biogenesis.
Induction of prophages of enterohemorrhagic Escherichia coli O157:H7 with norfloxacin.
Phylogenetic analysis of enterohemorrhagic Escherichia coli O157, Germany, 1987-2008.
Phenotypic and genotypic analyses of enterohemorrhagic Escherichia coli O145 strains from patients in Germany.
Hemolytic uremic syndrome associated with enterohemorrhagic Escherichia coli O26:H infection and consumption of unpasturized cow's milk.
Shiga toxin gene loss and transfer in vitro and in vivo during enterohemorrhagic Escherichia coli O26 infection in humans.
MLVA cluster profile of enterohemorrhagic Escherichia coli O157, Germany, 1987-2008 * MLVA Cluster-defining MLVA No.
Invasion of epithelial cells by locus of enterocyte effacement-negative enterohemorrhagic Escherichia coli.
Evolution of enterohemorrhagic Escherichia coli hemolysin plasmids and the locus for enterocyte effacement in Shiga toxin-producing E.
Enterohemorrhagic Escherichia coli (EHEC) strains are a highly pathogenic subgroup of Shiga toxin-producing E.
Multiplex PCR for detection of trait and virulence factors in enterohemorrhagic Escherichia coli serotypes.