Table 4. MICs of imipenem, meropenem, and ertapenem for P. mirabilis clinical isolates transformed with the ImpR-overexpressing plasmid.

	MIC (μg/ml)
Clinical isolate		imipenem	meropenem	ertapenem
1	vector	1	0.06	0.015
	pImpR	4	0.25	0.06
2	vector	1	0.06	0.03
	pImpR	4	0.25	0.06
3	vector	1	0.06	0.06
	pImpR	4	0.25	0.25
4	vector	2	0.06	0.03
	pImpR	8	0.25	0.12
5	vector	1	0.12	0.06
	pImpR	4	0.48	0.12
6	vector	1	0.03	0.03
	pImpR	8	0.25	0.12