Table 1.

Results of disk diffusion, E-test, and microdilution.

Strain number	Disk difusion	E-test	Microdilution
1	20 mm	1.0 μg/mL	2 μg/mL
2	26 mm	1.0 μg/mL	2 μg/mL
3	21 mm	1.0 μg/mL	2 μg/mL
4	20 mm	1.0 μg/mL	2 μg/mL
5	22 mm	0.75 μg/mL	2 μg/mL
6	22 mm	1.0 μg/mL	2 μg/mL
7	26 mm	0.50 μg/mL	4 μg/mL
8	20 mm	1.0 μg/mL	2 μg/mL
9	20 mm	1.5 μg/mL	2 μg/mL
10	20 mm	1.0 μg/mL	2 μg/mL
11	18 mm	0.75 μg/mL	2 μg/mL
12	21 mm	1.0 μg/mL	2 μg/mL
13	20 mm	1.5 μg/mL	2 μg/mL
14	22 mm	1.5 μg/mL	2 μg/mL
15	18 mm	1.0 μg/mL	2 μg/mL
16	16 mm	0.75 μg/mL	2 μg/mL
17	18 mm	0.50 μg/mL	2 μg/mL
18	22 mm	1.5 μg/mL	2 μg/mL
19	18 mm	0.38 μg/mL	2 μg/mL
20	20 mm	1.0 μg/mL	2 μg/mL
21	18 mm	0.50 μg/mL	2 μg/mL
22	20 mm	0.75 μg/mL	2 μg/mL
23	19 mm	0.75 μg/mL	2 μg/mL
Quality control ATCC 29213	19 mm	0.5–2 μg/mL	2 μg/mL