Australian Group on Antimicrobial Resistance Community-onset Gram-negative Surveillance Program annual report, 2010
Turnidge, J.D., Gottlieb, T., Mitchell, D.H., Coombs, G.W., Pearson, J.C. and Bell, J.M. for the Australian Group on Antimicrobial Resistance (2013) Australian Group on Antimicrobial Resistance Community-onset Gram-negative Surveillance Program annual report, 2010. Communicable diseases intelligence quarterly report, 37 (3). E219-E223.
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The Australian Group on Antimicrobial Resistance (AGAR) performs regular period-prevalence studies to monitor changes in antimicrobial resistance in selected enteric Gram-negative pathogens. The 2010 survey focussed on community-onset infections, examining isolates from urinary tract infections from patients presenting to outpatient clinics, emergency departments or to community practitioners. Two thousand and ninety-two Escherichia coli, 578 Klebsiella species and 268 Enterobacter species were tested using a commercial automated method (Vitek 2, BioMérieux) and results were analysed using Clinical and Laboratory Standards Institute breakpoints from January 2012. Of the key resistances, non-susceptibility to the third-generation cephalosporin, ceftriaxone, was found in 3.2% of E. coli and 3.2%–4.0% of Klebsiella spp. Non-susceptibility rates to ciprofloxacin were 5.4% for E. coli, 1.0%–2.3% for Klebsiella spp., and 2.5%–6.6% in Enterobacter spp, and resistance rates to piperacillin-tazobactam were 2.8%, 3.2%–6.9%, and 16.8%–18.0% for the same 3 groups respectively. Only 3 strains, 2 Klebsiella spp. and 1 Enterobacter spp, were shown to harbour a carbapenemase (IMP-4).
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