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.