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Updated: Jan 27, 2026

Analysis of Yersinia enterocolitica Effector Translocation into Host Cells Using Beta-lactamase Effector Fusions
Published on: October 13, 2015
Occurrence of Yersinia enterocolitica in Poultry Products
E DE Boer1, B J Hartog1, J Oosterom1
1Food Inspection Service, Postbus 9012, 7200 GN Zutphen, The Netherlands; Food Inspection Service, Enschede, The Netherlands and National Institute of Public Health, Bilthoven, The Netherlands.
Abstract:
In a study on isolation of Yersinia enterocolitica from poultry products, usefulness of the following enrichment media was evaluated: phosphate-buffered saline solution with and without addition of 1% sorbitol plus 0.15% bile salts, modified Rappaport medium and selenite broth. Plating was performed on MacConkey agar directly from the incubated broths and after treatment of the enrichment broths with a potassium hydroxide solution. Seventy-three of 108 (68%) samples of poultry products contained Y. enterocolitica . Y. enterocolitica was isolated most frequently after enrichment in phosphate-buffered saline solution with sorbitol and bile salts. Nearly all Y. enterocolitica strains were found after KOH-treatment. Serotyping showed that the isolated strains mainly belonged to the category of the non-pathogenic, so called "environmental" strains.
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