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1 December 2007 High Incidence of Yersinia enterocolitica (Enterobacteriaceae) in Alpine Accentors Prunella collaris of the Tatra Mountains
Milan Novotný, Monika Fečková, Marián Janiga, Martin Lukáň, Martina Novotná, Zuzana Kovalčíková
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Cloacal and pharyngeal swabs were sampled from 33 Alpine Accentors. A total of 32 specimens were Yersinia positive, with 73% of birds being positive for Y. enterocolitica and 51% for Yersinia spp. A comparison of host characters and environmental conditions showed these to be consistent with the different life strategies of Y. enterocolitica and other Yersinia species. Y. enterocolitica is more successful at colonizing the birds' digestive tracts — the occurrence of Y. enterocolitica was significantly higher in the cloacal than the pharyngeal swabs. The occurrence of Y. enterocolitica was high in summer, especially in the nesting period (July). In juveniles (including nestlings), there was a 100% prevalence of Y. enterocolitica, whereas only two out of nine juveniles were Yersinia spp. positive. There was no significant difference between the occurrence of Y. enterocolitica in anthropogenic and natural habitats, but the occurrence of Yersinia spp. was much greater in the former than in the latter habitats. The presence of the ail gene associated with pathogenic Y. enterocolitica strains was not confirmed in any of the samples examined.



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Milan Novotný, Monika Fečková, Marián Janiga, Martin Lukáň, Martina Novotná, and Zuzana Kovalčíková "High Incidence of Yersinia enterocolitica (Enterobacteriaceae) in Alpine Accentors Prunella collaris of the Tatra Mountains," Acta Ornithologica 42(2), 137-143, (1 December 2007).
Received: 1 April 2007; Accepted: 1 November 2007; Published: 1 December 2007
ail gene
Alpine Accentor
Prunella collaris
Yersinia enterocolitica
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