TABLE 3.

Antimicrobial susceptibility determination for induction strains by the disc diffusion method^a

Antimicrobial agent	Drug content of assay paper (/piece)	E. coli-96 resistant strain		E. coli-96 control strain		F41-80 resistant strain		F41-80 control strain		A. hydrophila-69 resistant strain		A. hydrophila-69 control strain		P. aeruginosa-80 resistant strain		P. aeruginosa-80 control strain		P. aeruginosa original strain		P. aeruginosa UV-1 resistant strain		P. aeruginosa UV-3 resistant strain		P. aeruginosa UV-7 resistant strain		UV-induced E. coli resistant strain
		Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result	Inhibitory zone diam (mm)	Judgment result
Cefoperazone	75 μg	0	R	22.8 ± 1.2	S	0	R	22.3 ± 1.5	S	0	R	24.8 ± 0.6	S	0	R	20.5 ± 0.9	S	27.9 ± 0.5	S	23.1 ± 0.5	S	31.5 ± 0.5	S	20.5 ± 0.9	S	30 ± 1.2	S
Polymyxin B	300 IU	14.9 ± 0.2	S	13.9 ± 1.1	S	17.8 ± 0.4	S	15.9 ± 0.4	S	14.9 ± 0.6	S	15.9 ± 0.4	S	13.9 ± 0.5	S	13 ± 0.7	S	14.3 ± 1.0	S	11 ± 0.4	I	16 ± 0.4	S	10 ± 0.5	I	13 ± 1.0	S
Ofloxacin	5 μg	29.9 ± 0.7	S	32.2 ± 0.4	S	34.7 ± 1.0	S	34.1 ± 1.5	S	30.7 ± 0.5	S	31.9 ± 0.7	S	29.9 ± 2.4	S	28.8 ± 1.1	S	29.7 ± 0.4	S	29.2 ± 0.7	S	33 ± 2.0	S	40 ± 1.0	S	0	R
Amikacin	30 μg	0	R	22.0 ± 0.6	S	0	R	20.2 ± 1.6	S	0	R	21.8 ± 2.0	S	0	R	22.2 ± 0.8	S	27.3 ± 0.6	S	26.1 ± 1.0	S	37 ± 1.0	S	32.5 ± 0.6	S	26 ± 1.0	S

^aZone diameter data represent means ± standard deviations from three independent experiments performed in triplicate. R, resistant; S, susceptible; I, intermediate.