Yersinia enterocoliticaandYersinia pseudotuberculosisDetection in Foods

Abstract

Yersinia enterocoliticaandY. pseudotuberculosiswhich can cause yersiniosis in humans and animals are thought to be significant food-borne pathogens and be important as hygiene indicator in food safety. The pathogenicY. enterocoliticaserotypes/biotypes are O:3/4 and 3 variant VP negative, O:5, 27/2, O:8/1b, and O:9/2, have been reported worldwide.Y. pseudotuberculosisis distributed less widely thanY. enterocolitica. Isolation methods usually involve selective and recovery enrichment of the food sample followed by plating onto selective media, confirmation of typical colonies and testing for virulence properties of isolated strains. Recently, DNA-based methods, such as PCR assays, have been developed to detect pathogenicY. enterocoliticaandY. pseudotuberculosisin foods more rapidly, and sensitivity than can be achieved by conventional culture methods. This paper reviews commercially available conventional and PCR-based procedures for the detection of pathogenicYersiniain food. These methods are effective as the isolation and detection methods to target pathogenicY. enterocoliticaandY. pseudotuberculosisin foods.