title: Hemorrhagic colitis in a nursing home in Ontario.
mesh_terms: D000368:Aged; D003092:Colitis / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D004196:Disease Outbreaks / Q000453:epidemiology*; D004812:Epidemiologic Methods; D004926:Escherichia coli / Q000302:isolation & purification; D005516:Food Microbiology; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D006801:Humans; D009735:Nursing Homes; D009864:Ontario; D012703:Serotyping