Patterns of infection by Salmonella and Yersinia spp. in commensal house mouse (Mus musculus domesticus) populations |
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Authors: | Pocock M J Searle J B Betts W B White P C |
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Affiliation: | Department of Biology, University of York, UK. |
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Abstract: | AIMS: This study sought to examine the risk posed by house mice transmitting pathogens to livestock on typical mixed-agriculture farms in the UK. METHODS AND RESULTS: In a 10-month longitudinal study at one farm, 222 faecal samples were taken from mice and 57 swabs from the farm environment; 3.2% and 15.8%, respectively, were positive for Yersinia. Seventy-five intestinal samples were taken from house mice from three other farms and 9.3% were positive for Yersinia. The commonest species was Y. enterocolitica (of a wide range of serotypes); all isolates were non-pathogenic, except one of Y. pseudotuberculosis. Salmonella was not isolated from any sample. CONCLUSION: This study provides additional evidence that house mice are generally not significant vectors of either pathogenic Yersinia strains or Salmonella species. SIGNIFICANCE AND IMPACT OF THE STUDY: This is the first longitudinal study of Yersinia in any small mammal population, and shows infection to be a dynamic series of generally non-pathogenic, transient infections. |
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