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

dc.contributor.advisorPearl, David L.
dc.contributor.authorVogt, Nadine A.
dc.date.accessioned2017-09-12T15:20:31Z
dc.date.available2017-09-12T15:20:31Z
dc.date.copyright2017-09
dc.date.created2017-09-07
dc.date.issued2017-09-12
dc.degree.departmentDepartment of Population Medicineen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmePopulation Medicineen_US
dc.description.abstractThis 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.sponsorshipOntario Ministry of Agriculture, Food and Rural Affairs
dc.description.sponsorshipOntario Veterinary College (OVC)
dc.description.sponsorshipUniversity of Guelph
dc.identifier.urihttp://hdl.handle.net/10214/11574
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Canada*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/ca/*
dc.subjectantimicrobial resistanceen_US
dc.subjectCampylobacteren_US
dc.subjectSalmonellaen_US
dc.subjectE. colien_US
dc.subjectCanada geeseen_US
dc.subjectwildlifeen_US
dc.subjectzoonosisen_US
dc.subjectmolecular typingen_US
dc.titleEpidemiology of Campylobacter, Salmonella, and antimicrobial resistant E. coli among free-living Canada geese in southern Ontarioen_US
dc.typeThesisen_US

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