title: E. coli O157:H7 outbreak in the United States associated with bagged fresh spinach.
mesh_terms: D004196:Disease Outbreaks; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D018724:Spinacia oleracea / Q000382:microbiology*; D014481:United States / Q000453:epidemiology