Distribution of plasmid-mediated quinolone resistance in Gram-negative bacteria from a tertiary hospital in Nigeria.

Background: Until recently, mechanisms of resistance to quinolones in Gram-negative bacteria were believed to be only chromosome encoded. However, emergence of plasmid-mediated quinolone resistance (PMQR) has been reported worldwide.

Aim: This study investigated distribution of PMQR in Gram-negative bacteria from a tertiary hospital in eastern part of Nigeria.