Escherichia coli (enterotoxigenic) and Nalidixic acid (NegGam)
Concentration
(μg/ml)
4
3.6
3.2
2.8
2.4
2
1.6
1.2
0.8
0.4
Nalidixic acid (NegGam)
2
2
Nalidixic acid (NegGam)
4
4
Nalidixic acid (NegGam)
4
4
1
2
3
MIC50
MIC90
Strain Number