Streptococcus pyogenes (constitutively erm(B)) and Azithromycin (Zithromax, Sumamed, Zitrocin)
Concentration
(μg/ml)
128
115.2
102.4
89.6
76.8
64
51.2
38.4
25.6
12.8
Azithromycin (Zithromax, Sumamed, Zitrocin)
64
64
Azithromycin (Zithromax, Sumamed, Zitrocin)
128
128
1
2
MIC50
MIC90
Strain Number