title: Hemorrhagic colitis due to Escherichia coli O157:H7. A rare disease?
mesh_terms: D000328:Adult; D000368:Aged; D002170:Canada; D003092:Colitis / Q000453:epidemiology / Q000382:microbiology*; D003428:Cross Infection; D004196:Disease Outbreaks / Q000453:epidemiology; D004926:Escherichia coli / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D012703:Serotyping