Streptococci (Viridans group penicillin-susceptible) and Sparfloxacin (AT-4140, Zagam)
Concentration
(μg/ml)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Sparfloxacin (AT-4140, Zagam)
0.5
0.25
Sparfloxacin (AT-4140, Zagam)
1
0.5
1
2
MIC50
MIC90
Strain Number