Canada and the USA: Escherichia coli O157:H7.
D000818:Animals; D002170:Canada; D002417:Cattle; D004927:Escherichia coli Infections / Q000517:prevention & control*; D019453:Escherichia coli O157; D005516:Food Microbiology; D006801:Humans; D008460:Meat / Q000382:microbiology*; D014481:United States