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Escherichia coli (E. coli) a species of coliform bacteria of the family Enterobacteriaceae, normally present in the intestines and common in water, milk, and soil. E. coli is the most frequent cause of urinary tract infection and is a serious gram-negative pathogen in wounds. E. coli septicemia may rapidly result in shock and death through the action of an endotoxin released from the bacteria. See also enterohemorrhagic Escherichia coli.
Factsheet for health professionals. Escherichia coli (E.coli) are very common bacteria in the gastrointestinal tract, and part of the normal bacterial flora. However, some E.coli strains are able to produce a toxin that could produce serious infection.he death rate of HUS is about 3â5%. Shiga toxin-producing E. coli (STEC). Shiga toxin-producing E. coli (STEC) is a group of pathogenic Escherichia coli strains capable of producing Shiga toxins, with the potential to cause severe enteric and systemic disease in humans.