Streptococcus spp. (Viridans group) and Quinupristin/Dalfopristin (Synercid)
Concentration
(μg/ml)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Quinupristin/Dalfopristin (Synercid)
1
0.5
Quinupristin/Dalfopristin (Synercid)
1
0.5
1
2
MIC50
MIC90
Strain Number