Emergence of the Quinolone Resistance-Mediating Gene aac(6′)-Ib-cr in Extended-Spectrum-β-Lactamase-Producing Klebsiella Isolates Collected in Slovenia between 2000 and 2005

Emergence of the Quinolone Resistance-Mediating Gene aac(6′)-Ib-cr in Extended-Spectrum-β-Lactamase-Producing Klebsiella Isolates Collected in Slovenia between 2000 and 2005 High Prevalence of Plasmid-Mediated Quinolone Resistance Genes qnr and aac(6′)-Ib-cr in Clinical Isolates of Enterobacteriaceae from Nine Teaching Hospitals in China Emergence of Plasmid-Mediated Quinolone Resistance among Non-Typhi Salmonella enterica Isolates from Humans in the United States Prevalence of aac(6′)-Ib-cr Encoding a Ciprofloxacin-Modifying Enzyme among Enterobacteriaceae Blood Isolates in Korea Presence of Plasmid-Mediated Quinolone Resistance in Klebsiella pneumoniae Isolates Possessing bla _KPC in the United States Plasmid-Mediated qnrB2 and Carbapenemase Gene bla _KPC-2 Carried on the Same Plasmid in Carbapenem-Resistant Ciprofloxacin-Susceptible Enterobacter cloacae Isolates Prevalence and Expression of the Plasmid-Mediated Quinolone Resistance Determinant qnrA1 Complex Class 1 Integrons with Diverse Variable Regions, Including aac ( 6 ′)- Ib - cr , and a Novel Allele, qnrB10 , Associated with IS CR1 in Clinical Enterobacterial Isolates from Argentina High Prevalence of Plasmid-Mediated Quinolone Resistance Determinants qnr , aac(6 ′ ) - Ib-cr , and qepA among Ceftiofur-Resistant Enterobacteriaceae Isolates from Companion and Food-Producing Animals New Plasmid-Mediated Quinolone Resistance Gene, qnrC , Found in a Clinical Isolate of Proteus mirabilis