Citrobacter freundii and Cefoxitin (Mefoxin)

Concentration
(μg/ml)

100
90
80
70
60
50
40
30
20
10

Cefoxitin (Mefoxin): 100; 12.5
Cefoxitin (Mefoxin): 64; 32

1
2

MIC50

MIC90

Strain Number