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dc.contributor.authorSaputra, S.-
dc.contributor.authorJordan, D.-
dc.contributor.authorWorthing, K.-
dc.contributor.authorNorris, J.-
dc.contributor.authorWong, H.-
dc.contributor.authorAbraham, R.-
dc.contributor.authorTrott, D.-
dc.contributor.authorAbraham, S.-
dc.contributor.editorSmith, T.C.-
dc.identifier.citationPLoS One, 2017; 12(4):e0176379-1-e0176379-17-
dc.descriptionPublished: April 21, 2017-
dc.description.abstractMethicillin-resistant coagulase-positive staphylococci (CoPS) have become increasingly recognised as opportunistic pathogens that limit therapeutic options in companion animals. The frequency of methicillin resistance amongst clinical isolates on an Australia-wide level is unknown. This study determined antimicrobial susceptibility patterns for CoPS isolated from clinical infections in companion animals (dogs, cats and horses) as part of the first nation-wide survey on antimicrobial resistance in animal pathogens in Australia for a one-year period (January 2013 to January 2014). Clinical Staphylococcus spp. isolates (n = 888) obtained from 22 veterinary diagnostic laboratories were identified by MALDI-TOF mass spectrometry and subjected to antimicrobial susceptibility testing for 16 antimicrobials, representing 12 antimicrobial classes. Potential risk factors associated with methicillin resistance in Staphylococcus pseudintermedius isolates from dogs were analysed based on demographic factors and clinical history, including gender, age, previous antimicrobial treatment, chronic and/or recurrent diseases and site of infections. The most commonly identified CoPS were S. pseudintermedius (70.8%; dogs n = 616, cats n = 13) and S. aureus (13.2%, horses n = 53, dogs n = 47 and cats n = 17). Overall, the frequency of methicillin resistance among S. pseudintermedius (MRSP) and S. aureus (MRSA) was 11.8% and 12.8%, respectively. MRSP isolates were strongly associated with resistance to fluoroquinolones (OR 287; 95%CI 91.2-1144.8) and clindamycin (OR 105.2, 95%CI 48.5-231.9). MRSA isolates from dogs and cats were also more likely to be resistant to fluoroquinolones (OR 5.4, 95%CI 0.6-252.1), whereas MRSA from horses were more likely to be resistant to rifampicin. In multivariate analysis, MRSP-positive status was significantly associated with particular infection sites, including surgical (OR 8.8; 95%CI 3.74-20.7), and skin and soft tissue (OR 3.9; 95%CI 1.97-7.51). S. pseudintermedius isolated from dogs with surgical site infections were three times more likely to be methicillin-resistant if cases had received prior antimicrobial treatment. Whilst the survey results indicate the proportion of CoPS obtained from Australian companion animals that are methicillin-resistant is currently moderate, the identified risk factors suggest that it could rapidly increase without adequate biosecurity and infection control procedures in veterinary practice.-
dc.description.statementofresponsibilitySugiyono Saputra, David Jordan, Kate A. Worthing, Jacqueline M. Norris, Hui S. Wong, Rebecca Abraham, Darren J. Trott, Sam Abraham-
dc.publisherPublic Library of Science (PLoS)-
dc.rights© 2017 Saputra et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.-
dc.subjectStaphylococcus aureus-
dc.subjectSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization-
dc.subjectMicrobial Sensitivity Tests-
dc.titleAntimicrobial resistance in coagulase-positive staphylococci isolated from companion animals in Australia: a one year study-
dc.typeJournal article-
dc.identifier.orcidSaputra, S. [0000-0002-5449-3387]-
dc.identifier.orcidTrott, D. [0000-0002-8297-5770]-
Appears in Collections:Animal and Veterinary Sciences publications
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