gram-negative_bacterial_infectious_disease obsolete enterohemorrhagic Escherichia coli infectious disease true disease_ontology DOID:14433 An Escherichia coli intestinal infectious disease that involves infection of the intestine caused by a serological subgroup of Escherichia coli called enterohemorrhagic Escherichia coli (EHEC), which cause hemorrhagic colitis or bloody diarrhea that can progress to hemolytic uremic syndrome. EHEC are considered to be moderately invasive and are characterized by the production of verotoxin or Shiga toxins. The infection results in copious bloody discharge. Verotoxigenic Escherichia coli gastrointestinal tract infection Verotoxigenic Escherichia coli gastrointestinal tract infection (disorder) intestinal infection due to enterohemorrhagic E. coli