title: Letter: Incidence of Yersinia enterocolitica and Y. pseudotuberculosis infections in Canada; 1975 semiannual report.
mesh_terms: D000293:Adolescent; D002170:Canada; D005759:Gastroenteritis / Q000382:microbiology; D006801:Humans; D010326:Pasteurella Infections / Q000453:epidemiology* / Q000382:microbiology; D018805:Sepsis / Q000382:microbiology; D012703:Serotyping; D015007:Yersinia / Q000302:isolation & purification; D015012:Yersinia pseudotuberculosis Infections / Q000453:epidemiology*