title: Cytotoxic Escherichia coli O157:H7 associated with haemorrhagic colitis in Canada.
mesh_terms: D002170:Canada; D003092:Colitis / Q000209:etiology*; D003603:Cytotoxins / Q000096:biosynthesis; D004196:Disease Outbreaks / Q000453:epidemiology; D004926:Escherichia coli / Q000145:classification* / Q000378:metabolism; D004927:Escherichia coli Infections; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans
chemical_list: D003603:Cytotoxins