Prevalence of plasmid-mediated quinolone resistance determinants in Citrobacter freundii isolates from Anhui province, PR China
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چکیده
منابع مشابه
Prevalence of plasmid-mediated quinolone resistance in Escherichia coli isolates in Wenzhou, Southern China, 2002-2008.
A total of 514 consecutive clinical Escherichia coli isolates, irrespective of resistance background, were collected in the period 2002-2008 in Wenzhou, southern China, to investigate the prevalence of plasmid-mediated quinolone resistance (PMQR). The dominant PMQR gene was aac(6')-Ib-cr, followed by qnr, whereas qepA was absent. A total of 253 (49.2%) of these isolates were aac(6')-Ib-positive...
متن کاملPrevalence of plasmid-mediated quinolone resistance.
Quinolone resistance encoded by the qnr gene and mediated by plasmid pMG252 was discovered in a clinical strain of Klebsiella pneumoniae that was isolated in 1994 at the University of Alabama at Birmingham Medical Center. The gene codes for a protein that protects DNA gyrase from quinolone inhibition and that belongs to the pentapeptide repeat family of proteins. The prevalence of the gene has ...
متن کاملPlasmid-mediated quinolone resistance determinants in Salmonella spp. isolates from reptiles in Germany.
Escherichia coli isolates expressing plasmid-mediated quinolone resistance and expanded-spectrum b-lactamase. Antimicrob Agents Chemother 2006; 50: 1525–7. 9 Strahilevitz J, Engelstein D, Adler A et al. Changes in qnr prevalence and fluoroquinolone resistance in clinical isolates of Klebsiella pneumoniae and Enterobacter spp. collected from 1990 to 2005. Antimicrob Agents Chemother 2007; 51: 30...
متن کاملPlasmid-mediated quinolone resistance in clinical isolates of Escherichia coli from Shanghai, China.
Although quinolone resistance usually results from chromosomal mutations, recent studies indicate that quinolone resistance can also be plasmid mediated. The gene responsible, qnr, is distinct from the known quinolone resistance genes and in previous studies seemed to be restricted to Klebsiella pneumoniae and Escherichia coli isolates from the University of Alabama in Birmingham, where this re...
متن کاملPlasmid-mediated quinolone resistance determinants among enterobacterial isolates from outpatients in Brazil.
OBJECTIVES The aim of this study was to determine the spread of plasmid-mediated quinolone resistance determinants [qnr-like, aac(6')-Ib-cr and qepA genes] among nalidixic acid-resistant enterobacterial strains isolated from outpatients from Southeast Brazil, their transferability and the genetic structures associated with the qnr genes. METHODS The qnrA, qnrB and qnrS genes were screened by ...
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 2011
ISSN: 0022-2615,1473-5644
DOI: 10.1099/jmm.0.034082-0