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M161-3 | cmpt


Stool: Yersinia enterocolitica – Shipped May 16, 2016


A simulated stool sample collected from a 25 year old patient who developed diarrhea while visiting Vancouver and reports joint pain 2 weeks later. The sample was sent to category A and B laboratories.

Participants were expected to isolate and identify Yersinia enterocolitica and report the organism to public health (PH) authorities.


  1. Reports should indicate which pathogens were sought, even if not detected. The report of Yersinia enterocolitica should include also a statement that “No Salmonella, Shigella, Campylobacter, Escherichia coli O157:H7, Aeromonas or Vibrio species were isolated”.
  2. Yersiniosis, caused by Y. enterocolitica or Y. pseudotuberculosis, is a notifiable disease in most jurisdictions in Canada, but is not nationally notifiable.

Full critique (PDF)

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