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The prevalence of resistance to chloramphenicol, clindamycin, erythromycin, and gentamicin was low during the examination period (\u22644.8%). Resistance to tetracycline remained consistently high (41.6%\u201365.1%), and resistance was primarily conferred by plasmid-borne tetO (96.2%). Resistance rates to ciprofloxacin and nalidixic acid increased substantially over the examination period, with a maximal fluoroquinolone resistance (FQR) prevalence of 28.9% in 2016. The majority of C. jejuni isolates resistant to ciprofloxacin (93.9%) contained a C257T single nucleotide polymorphism within the gyrA chromosomal gene. Follow up with infected people indicated that the observed increase in FQR was primarily due to domestically acquired infections. Moreover, the majority of FQ-resistant C. jejuni subtypes (82.6%) were endemic in Canada, primarily linked to cattle and chicken reservoirs; 18.4% of FQ-resistant isolates were assigned to three subtypes, predominantly associated with cattle. Study findings indicate the need to prioritize FQR monitoring in C. jejuni infections in Canada and to elucidate the dynamics of the emergence and transmission of resistant C. jejuni strains within and from cattle and chicken reservoirs. <\/jats:p>","DOI":"10.1139\/cjm-2020-0146","type":"journal-article","created":{"date-parts":[[2020,8,17]],"date-time":"2020-08-17T21:34:40Z","timestamp":1597700080000},"page":"37-52","update-policy":"https:\/\/doi.org\/10.1139\/csp-crossmark-policy","source":"Crossref","is-referenced-by-count":27,"title":["Rates of fluoroquinolone resistance in domestically acquired <i>Campylobacter jejuni<\/i> are increasing in people living within a model study location in Canada"],"prefix":"10.1139","volume":"67","author":[{"given":"G. 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