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Epidemiology of Campylobacter, Salmonella, and antimicrobial resistant E. coli among free-living Canada geese in southern Ontario

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dc.contributor.advisor Pearl, David L.
dc.contributor.author Vogt, Nadine A.
dc.date.accessioned 2017-09-12T15:20:31Z
dc.date.available 2017-09-12T15:20:31Z
dc.date.copyright 2017-09
dc.date.created 2017-09-07
dc.date.issued 2017-09-12
dc.identifier.uri http://hdl.handle.net/10214/11574
dc.description.abstract This thesis investigated the role of Canada geese as carriers of pathogenic and resistant bacteria in southern Ontario, using samples collected from three sources: hunted birds, diagnostic specimens, and live birds. Based on multi-level logistic regression models, the prevalence of Campylobacter was significantly lower during the nesting period when birds are nonvolant, suggesting that bird mobility outside of the breeding season impacts the carriage of these microorganisms. Antimicrobial resistance in E. coli was significantly associated with source, which suggests the local environment may be an important source of resistant bacteria. Examination of E. coli resistance patterns and Campylobacter subtypes (based on comparative genomic fingerprinting using a 40-gene assay) in different flocks of geese revealed similar resistance profiles and molecular subtypes in birds of the same flock. Canada geese may be a source of these microorganisms, and have the potential to disseminate them in the environment due to their migratory nature. en_US
dc.description.sponsorship Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), Ontario Veterinary College (OVC), University of Guelph en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivs 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ *
dc.subject antimicrobial resistance en_US
dc.subject Campylobacter en_US
dc.subject Salmonella en_US
dc.subject E. coli en_US
dc.subject Canada geese en_US
dc.subject wildlife en_US
dc.subject zoonosis en_US
dc.subject molecular typing en_US
dc.title Epidemiology of Campylobacter, Salmonella, and antimicrobial resistant E. coli among free-living Canada geese in southern Ontario en_US
dc.type Thesis en_US
dc.degree.programme Population Medicine en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Population Medicine en_US
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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada