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Abstract
Unprecedented levels of antimicrobial resistance in bacterial isolates have prompted great concerns globally. In 2012 the WHO released a publication outlining the evolving threat of antimicrobial resistance in order to raise awareness and to stimulate coordinated international efforts. The carbapenem class of antibiotics is largely considered as an antibiotic of last-resort when treating infections. Now carbapenem resistance further limits treatment options. In this article the authors discuss carbapenem resistance in Acinetobacter baumannii, a bacterial isolate often implicated in nosocomial infections. Virulence factors, intrinsic and acquired resistance mechanisms, together with laboratory challenges in the detection and antibiotic susceptibility testing of A. baumannii make this a truly problematic isolate. Therapeutic options are exceedingly limited, relying on polymyxins in combinations with other antibiotics, with few, if any, new active agents in the pipeline.
Financial & competing interests disclosure
AY Peleg was supported by the Australian National Health and Medical Research Council (APP1047916 and APP1010114). AY Peleg has been to one advisory board meeting for Abbott Molecular, Ortho-McNeil-Janssen and AstraZeneca, and has received a speaker’s honorarium from AstraZeneca, Merck Sharp & Dohme and Pfizer for one presentation each. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.