Characterization of antimicrobial resistance and application of RFLP for epidemiological monitoring of thermophilic Campylobacter spp. isolated from dogs and humans in Korea
2014
Cho, H.H., Animal, Plant and Fisheries Quarantine and Inspection Agency, Anyang, Republic of Korea | Kim, S.H., Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of orea | Min, W.G., Gyeongsang National University, Jinju, Republic of Korea | Ku, B.K., Animal, Plant and Fisheries Quarantine and Inspection Agency, Anyang, Republic of Korea | Kim, J.H., Division of Enteric Bacteria Infections, Center for Infectious Disease, National Institute of Health, Seoul, Republic of Korea | Kim, Y.H., Gyeongsang National University, Jinju, Republic of Korea
An antimicrobial susceptibility test was conducted to compare the resistance rates among Campylobacter spp. isolates from dogs (n = 50) raised under diverse conditions and humans (n = 50). More than 60% of Campylobacter (C.) jejuni from dogs and humans showed resistance to nalidixic acid, enrofloxacin and ciprofloxacin. C. jejuni isolates from humans showed higher resistance to tetracycline (83.3%) and ampicillin (91.3%) than those from dogs. None of the C. jejuni or Campylobacter coli isolates from humans or dogs were resistant to erythromycin. Overall, 85% of Campylobacter spp. isolates showed a multidrug resistant phenotype. Nucleotide sequencing analysis of the gryA gene showed that 100% of NA. /CIP. olates from dogs and humans had the Thr-86. h-Ile mutation, which is associated with fluoroquinolone resistance. flaA PCR restriction fragment length polymorphism (RFLP) typing to differentiate the isolates below the species level revealed 12 different clusters out of 73 strains. The human isolates belonged to eight different RFLP clusters, while five clusters contained dog and human isolates.
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