adjective, Definition; Enterohemorrhagic - Causing bloody diarrhea and colitis, said of pathogenic microorganisms. In Medicine, diarrhea, also spelled diarrhoea (see spelling differences) is frequent loose or liquid Bowel movements Acute diarrhea Colitis is a chronic digestive disease characterized by Inflammation of the colon. Primary cause of enterohemorrhage is usually associated with E. coli, otherwise known as E.coli serotype O157:H7, but may be induced by numerous pathogens. Enterohemorrhagic Escherichia coli O157:H7 is known to release verotoxin. Escherichia coli O157H7 is an Enterohemorrhagic strain of the bacterium Escherichia coli and a cause of Foodborne illness Shiga-like toxin is a AB5-type Shiga toxin produced by the Bacteria Escherichia coli and also known as verotoxin.