Prevalence of pathogenic Yersinia enterocolitica and Yersinia pseudotuberculosis in wild boars in Switzerland.

Abstract:

:Between October 2007 and March 2008, 153 wild boars shot in the Canton of Geneva in Switzerland were sampled. Fifty-one percent of the animals were males and 49% were females. The age of most (81%) animals varied between 6months and 2years. Prevalence of enteropathogenic Yersinia in tonsils and faeces was studied using culture and PCR methods and in tissue fluid of tonsils using an ELISA system. Prevalence of anti-Yersinia antibodies in tissue fluid was 65%. Detection rate of enteropathogenic Yersinia in tonsils of 153 wild boars by real-time PCR was 44%. Ail-positive Yersiniaenterocolitica and inv-positive Yersiniapseudotuberculosis were detected in 35 and 20% of the animals, respectively. Both species were detected in 10% of the animals. Isolation rate of enteropathogenic Yersinia was low; ail-positive Y. enterocolitica and inv-positive Y. pseudotuberculosis were found in 9 and 3% of the animals, respectively. Prevalence was shown to be significantly higher in tonsils than in faeces. Furthermore, females were more commonly positive than males. This study shows that the prevalence of enteropathogenic Yersinia is high and both enteropathogenic Y. enterocolitica and Y. pseudotuberculosis are common findings in tonsils of wild boars in Switzerland.

journal_name

Int J Food Microbiol

authors

Fredriksson-Ahomaa M,Wacheck S,Koenig M,Stolle A,Stephan R

doi

10.1016/j.ijfoodmicro.2009.08.019

subject

Has Abstract

pub_date

2009-11-15 00:00:00

pages

199-202

issue

3

eissn

0168-1605

issn

1879-3460

pii

S0168-1605(09)00458-9

journal_volume

135

pub_type

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