Aims and Background: This study investigated the prevalence of qnr genes and resistance to fluoroquinolone antibiotics among clinical isolates of Acinetobacter in Tehran.
Materials and Methods: Prevalence of qnr genes among Acinetobacter isolates were determined by PCR technique. Also by the use of antibiogram method, susceptibility of isolates against the fluoroquinolone family of antibiotics, piperacillin-tazobactam, and colistin were examined.
Results: Evaluation of PCR in the 50 qnr-positive Acinetobacter isolates showed that 74% of them had qnrA and 22% had qnrB. Almost all of isolates were resistant to the fluoroquinolones.
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