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The Journal of Practical Medicine ; (24): 4152-4155, 2017.
Artículo en Chino | WPRIM | ID: wpr-665439

RESUMEN

Objective To investigate the prevalence of plasmid-mediated quinolone resistance(PMQR) in Proteus mirabilis clinical isolated from urine. Methods Antimicrobial susceptibility test was performed using the microdilution method.And PMQR gene qnrA,qnrB,qnrC,qnrD,qnrS,aac(6′)-Ib-cr,qepA were amplified by PCR,then the PCR positive products were sequenced to identify their genotypes. Results In 41 strains of Proteus mirabilis from urine,the resistant rates to ciprofloxacin and levofloxacin were 41.5% and 29.3%,respec-tively.Among all clinical isolates,qnrA1 gene was detected in 2 strains,qnrB2 gene in 3 strains.PMQR gene qn-rB,qnrC,qnrD,qnrS,aac(6')-Ib-cr and qepA were not detected in all strains.Conclusions Clinical isolates of Proteus mirabilis from urine carry PMQR genes.The prevalent principal genotypes are qnrA1 and qnrB2 in these iso-lates.They are related to low levels resistance toquinolone.

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