Abstract Yersiniosis is a zoonosis caused by the Yersinia bacterium. The route of infection is most commonly oral and is caused by consumption of Yersinia-contaminated food. The clinical presentations of chronic yersiniosis are abdominal pain, diarrhea, relapsing arthritis, and skin lesions, that is, nodular erythema. The diagnosis is based on culture-dependent identification of Yersinia in stool, positive serologic test results, or molecular techniques. The treatment of choice is combination antibiotic therapy. Mild forms of the disease do not usually require treatment. Yersiniosis frequently mimics or confounds other chronic intestinal and extraintestinal inflammatory conditions, particularly Crohn’s disease. Therefore, diagnosis of yersiniosis may be a challenge for medical practitioners. Not including Yersinia infection in the differential diagnosis of abdominal symptoms can lead to an incorrect diagnosis and inappropriate treatment. This review summarises the current knowledge of Yersinia enterocolitica and pseudotuberculosis infection, with special focus on differential diagnosis between this infection and Crohn’s disease.
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