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    Australian Group on Antimicrobial Resistance Hospital-onset Staphylococcus aureus Surveillance Programme annual report, 2011

    Access Status
    Fulltext not available
    Authors
    Coombs, Geoffrey
    Nimmo, G.
    Pearson, J.
    Collignon, P.
    Bell, J.
    McLaws, M.
    Christiansen, K.
    Turnidge, J.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Coombs, G. and Nimmo, G. and Pearson, J. and Collignon, P. and Bell, J. and McLaws, M. and Christiansen, K. et al. 2013. Australian Group on Antimicrobial Resistance Hospital-onset Staphylococcus aureus Surveillance Programme annual report, 2011. Communicable Diseases Intelligence Quarterly Report. 37 (3): pp. E210-E218.
    Source Title
    Communicable diseases intelligence quarterly report
    ISSN
    1447-4514
    School
    School of Biomedical Sciences
    URI
    http://hdl.handle.net/20.500.11937/6761
    Collection
    • Curtin Research Publications
    Abstract

    In 2011, the Australian Group on Antimicrobial Resistance (AGAR) conducted a period-prevalence survey of clinical Staphylococcus aureus isolated from hospital inpatients. Twenty-nine microbiology laboratories from all states and mainland territories participated. Specimens were collected more than 48 hours post-admission. Isolates were tested by Vitek2® antimicrobial susceptibility card (AST-P612 card). Nationally, the proportion of S. aureus that were methicillin-resistant S. aureus (MRSA) was 30.3%; ranging from 19.9% in Western Australia to 36.8% in New South Wales/Australian Capital Territory. Resistance to the non-ß-lactam antimicrobials was common except for rifampicin, fusidic acid, high-level mupirocin and daptomycin. No resistance was detected for vancomycin, teicoplanin or linezolid. Antibiotic resistance in methicillin susceptible S. aureus (MSSA) was rare apart from erythromycin (13.2%) and there was no resistance to vancomycin, teicoplanin or linezolid. Inducible clindamycin resistance was the norm for erythromycin resistant, clindamycin intermediate/susceptible S. aureus in Australia with 90.6% of MRSA and 83.1% of MSSA with this phenotype having a positive double disc diffusion test (D-test). The proportion of S. aureus characterised as being healthcare-associated MRSA (HA-MRSA) was 18.2%, ranging from 4.5% in Western Australia to 28.0% in New South Wales/Australian Capital Territory. Four HA-MRSA clones were characterised and 98.8% of HA-MRSA isolates were classified as either ST22-IV [2B] (EMRSA-15) or ST239-III [3A] (Aus-2/3 EMRSA). Multiclonal community-associated MRSA (CA-MRSA) accounted for 11.7% of all S. aureus. In Australia, regional variation in resistance is due to the differential distribution of MRSA clones between regions, particularly for the major HA-MRSA clone, ST239-III [3A] (Aus-2/3 EMRSA), which is resistant to multiple non-ß-lactam antimicrobials.

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    • Antimicrobial susceptibility of Staphylococcus aureus and molecular epidemiology of meticillin-resistant S. aureus isolated from Australian hospital inpatients: Report from the Australian Group on Antimicrobial Resistance 2011 Staphylococcus aureus Surveillance Programme
      Coombs, Geoffrey; Pearson, J.; Nimmo, G.; Collignon, P.; Turnidge, J. (2013)
      The Australian Group on Antimicrobial Resistance (AGAR) performs regular multicentre period prevalence studies to monitor changes in antimicrobial resistance. In 2011, 29 laboratories in Australia participated in the ...
    • Community-onset Staphylococcus aureus Surveillance Programme annual report, 2012.
      Coombs, Geoffrey; Daly, D.; Pearson, J.; Nimmo, G.; Collignon, P.; McLaws, M.; Robinson, J.; Turnidge, J.; Australian Group on Antimicrobial Resistance (2014)
      In 2012, the Australian Group on Antimicrobial Resistance (AGAR) conducted a community-onset period-prevalence survey of clinical Staphylococcus aureus isolated from hospital outpatients and general practice patients ...
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      Baines, S.; Holt, K.; Schultz, M.; Seemann, T.; Howden, B.; Jensen, S.; van Hal, S.; Coombs, Geoffrey; Firth, N.; Powell, D.; Stinear, T.; Howden, B. (2015)
      Infections caused by highly successful clones of hospital-associated methicillin-resistant Staphylococcus aureus (HAMRSA) are a major public health burden. The globally dominant sequence type 239 (ST239) HA-MRSA clone has ...
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