Bioserotypes and Virulence Markers of Yersinia enterocolitica Strains Isolated from Mallards (Anas platyrhynchos) and Pheasants (Phasianus colchicus)

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Abstract:

Yersinia enterocolitica is the causative agent of yersiniosis in different animal species and in humans. Food contaminated with Y. enterocolitica is the main source of infection for humans, and swine plays a major role in the transmission of the disease. There are a limited number of reports of the prevalence of Y. enterocolitica in wild animals and birds. This study characterized virulence markers associated with Y. enterocolitica isolates recovered from mallards and pheasants. Y. enterocolitica strains were isolated from 5 (11.11%) of 45 mallards originating from a cold culture (peptone, sorbitol, and bile salts medium) belonging to biotype 1A. Serotyping showed that three of these five serotypes represented serotype O:8, one belonged to serotype O:5, and one did not agglutinate with any of the sera and was classified as nonidentified. Molecular analysis for virulence markers detected the ystB gene, which encodes an enterotoxin, in five isolates. Y. enterocolitica was not detected in any of the 16 examined pheasants.

Document Type: Research Article

DOI: http://dx.doi.org/10.4315/0362-028X.JFP-12-214

Affiliations: 1: Department of Epizootiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego 13, 10-718 Olsztyn, Poland. a.bancerz-kisiel@uwm.edu.pl 2: Department of Epizootiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego 13, 10-718 Olsztyn, Poland 3: Department of Avian Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego 13, 10-718 Olsztyn, Poland

Publication date: December 1, 2012

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