Brevibacterium spp. and Roxithromycin
Concentration
(μg/ml)
128
115.2
102.4
89.6
76.8
64
51.2
38.4
25.6
12.8
Roxithromycin
64
0.5
Roxithromycin
128
32
1
2
MIC50
MIC90
Strain Number