Molecular analysis of imipenem-resistant Acinetobacter baumannii isolated from US service members wounded in Iraq, 2003-2008

X. Z. Huang, M. A. Chahine, J. G. Frye, D. M. Cash, E. P. Lesho, D. W. Craft, L. E. Lindler, M. P. Nikolich

Research output: Contribution to journalReview article

15 Scopus citations

Abstract

Global dissemination of imipenem-resistant (IR) clones of Acinetobacter baumannii - A. calcoaceticus complex (ABC) have been frequently reported but the molecular epidemiological features of IR-ABC in military treatment facilities (MTFs) have not been described. We characterized 46 IR-ABC strains from a dataset of 298 ABC isolates collected from US service members hospitalized in different US MTFs domestically and overseas during 2003-2008. All IR strains carried the bla OXA-51 gene and 40 also carried bla OXA-23 on plasmids and/or chromosome; one carried bla OXA-58 and four contained ISAbal located upstream of bla OXA-51. Strains tended to cluster by pulsed-field gel electrophoresis profiles in time and location. Strains from two major clusters were identified as international clone I by multilocus sequence typing.

Original languageEnglish (US)
Pages (from-to)2302-2307
Number of pages6
JournalEpidemiology and Infection
Volume140
Issue number12
DOIs
StatePublished - Dec 2012

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Infectious Diseases

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