TABLE 2.

Resistance profiles of donor strains and transconjugants

Group and strain	MIC (μg/ml)
	CIPa	AMP	CTX	GEN	SXT	SMZ	TMP	CHL	TET
Clinical strains (donors)
4	64	≥512	≥512	≥512	≥512	≥512	≥128	≥512	≥512
7	128	≥512	≥512	≥512	≥512	≥512	≥128	≥512	128
10	128	≥512	≥512	≥512	≥512	≥512	≥128	64	256
12	128	≥512	≥512	≤1	≥512	≥512	≥128	64	256
29	64	≥512	256	≤1	≥512	≥512	≥128	64	256
76	≥256	≥512	64	≥512	≥512	≥512	≥128	256	256
Recipient, J53Az	0.008	16	0.03	0.125	0.5	16	0.125	4	1
Transconjugantsb
4-3	0.25	≥512	32	8	≥512	≥512	≥128	512	32
4-59	0.25	≥512	2	0.125	≥512	≥512	≥128	≥512	64
7-24.1	0.125	≥512	8	2	≥512	≥512	≥128	256	1
7-24.2	0.125	32	≤0.03	1	0.5	≥512	0.125	4	1
10-5	0.25	32	≤0.03	0.125	≥512	≥512	≥128	4	64
10-2	1	≥512	0.06	0.125	1	≥512	0.125	4	64
12-4	1	≥512	0.06	0.125	1	≥512	0.125	4	64
29-11	1	≥512	0.06	0.125	0.5	≥512	0.125	4	64
76-65	2	≥512	8	128	≥512	≥512	≥128	256	128

^aCIP, ciprofloxacin; AMP, ampicillin; CHL, chloramphenicol; CTX, cefotaxime; GEN, gentamicin; SMZ, sulfamethoxazole; TET, tetracycline; TMP, trimethoprim.

^bqnr is located on different-size plasmids for transconjugants 4-3 and 4-59, as well as 7-24.1 and 7-24.2, whereas qnr is located on the same-size plasmids for 10-5 and 10-2. For another transconjugant, 12-5, the MICs were the same as those for 12-4.