Prevalence of Plasmid-Mediated Quinolone Resistance Determinants and OqxAB Efflux Pumps among Extended-Spectrum -Lactamase Producing Klebsiella pneumoniae Isolated from Patients with Nosocomial Urinary Tract Infection in Tehran, Iran

Table 4

Coexisting ESBL and PMQR resistance genes among 247 ESBL producers.

Coexisting resistance genes	Number (%)
blaCTX-M and blaTEM	85 (34.4)
blaCTX-M and aac(6′)-Ib, oqxA,and oqxB	70 (28.3)
blaTEM, blaSHV and aac(6′)-Ib, oqxA, and oqxB	48 (19.4)
blaCTX-M and blaSHV	24 (9.7)
qnrA, oqxA, and oqxB	7 (2.8)
blaCTX-M, blaTEM, blaSHV, and aac(6′)-Ib	4 (1.6)
blaCTX-M, oqxA, oqxB, and qnrA	2 (0.8)
aac(6′)-Ib, oqxA, oqxB, qnrB, and qnrS	1 (0.4)