Table 2.

Characteristics of MDR P. aeruginosa strains with identified genes encoding aminoglycoside-modifying enzymes and Qnr-like proteins.

Isolate	Specimen	Year of isolation	Genotype	MIC (μg/mL)
				GM	AN	NC	CIP	IMP	MEM	FEP	CAZ
PS-05	urine	2003	aac(6′)-Ib+ant(2″)-Ia +qnrB	≥ 256	64	≥ 256	≥ 32	≥ 32	16	48	4
PS-07	bronchial secretion	2003	qnrB	8	64	≥ 256	≥ 32	16	2	32	2
PS-09	bronchoalveolar lavage	2003	aac(6′)-Ib	16	128	≥ 256	4	2	2	16	4
PS-10	urine	2004	aac(6′)-Ib +qnrB	32	128	≥ 256	≥ 32	16	2	4	2
PS-12	bronchial secretion	2004	ant(2″)-Ia	≥ 256	64	32	4	2	16	16	2
PS-15	nasal swab	2005	aac(6′)-Ib	64	≥ 256	≥ 256	≥ 32	16	≥ 32	32	32
PS-16	bronchial secretion	2005	ant(2″)-Ia	≥ 256	64	≥ 256	1	≥ 32	16	16	8
PS-17	bronchoalveolar lavage	2006	aac(6′)-Ib +qnrB	≥ 256	≥ 256	≥ 256	≥ 32	≥ 32	≥ 32	16	64
PS-18	blood	2006	ant(2″)-Ia	≥ 256	128	≥ 256	8	16	1	48	32
PS-19	bronchial secretion	2007	ant(2″)-Ia	≥ 256	≥ 256	≥ 256	≥ 32	≥ 32	≥ 32	4	1
PS-21	bronchial secretion	2008	ant(2″)-Ia	≥ 256	≥ 256	≥ 256	≥ 32	16	≥ 32	32	64
PS-22	bronchial secretion	2008	aac(6′)-Ib+ant(2″)-Ia+aph(3″)-Ib	16	128	≥ 256	≥ 32	≥ 32	16	48	16
PS-23	nasal swab	2009	aac(6′)Ib+ant(2″)-Ia	128	≥ 256	≥ 256	≥ 32	≥ 32	2	32	2
PS-25	bronchial secretion	2009	ant(2″)-Ia+aph(3″)-Ib +qnrB	≥ 256	128	8	≥ 32	≥ 32	≥ 32	32	1

GN = gentamicin; AN = amikacin; NC = netilmicin; CIP = ciprofloxacin; IMP = imipenem; MEM = meropenem; FEP = cefepime; CAZ = ceftazidime.