Providencia rettgeri and Imipenem
Concentration
(μg/ml)
3
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
Imipenem
1
1
Imipenem
2
1
Imipenem
3
1.5
Imipenem
2
2
1
2
3
4
MIC50
MIC90
Strain Number