TABLE 2.

Number of isolates and correlation between MICs of tetracycline and doxycycline, tetracycline and minocycline, and tetracycline and tigecycline

Drug and MIC (μg/ml)	No. of isolates for which the tetracycline MIC (μg/ml) was:
	8	16	32	64	128	Total
Doxycycline
0.5	1					1
1	3	3	1			7
2	7	22	11			40
4	3	23	67	39	1	133
8			29	25	1	55
16			1	5		6
Total	14	48	109	69	2	242
Minocycline
0.5	2	1				3
1	9	11	3			23
2	1	12	16	4		33
4	2	19	51	17		89
8		5	27	37	2	71
16			12	11		23
Total	14	48	109	69	2	242
Tigecycline
≤0.003		1	1			2
0.0075	4	8	13	12		37
0.015	7	30	50	34	2	123
0.03	3	8	42	20		73
0.06		1	3	3		7
Total	14	48	109	69	2	242