Serratia spp. and Zosyn
Concentration
(μg/ml)
256
230.4
204.8
179.2
153.6
128
102.4
76.8
51.2
25.6
Zosyn
4
2
Zosyn
32
2
Zosyn
256
4
Zosyn
128
32
1
2
3
4
MIC50
MIC90
Strain Number