Staphylococcus aureus and Ampicillin (Omnipen)
Concentration
(μg/ml)
200
180
160
140
120
100
80
60
40
20
Ampicillin (Omnipen)
1.56
0.2
Ampicillin (Omnipen)
200
12.5
Ampicillin (Omnipen)
16
16
1
2
3
MIC50
MIC90
Strain Number