Table 1 Results of MIC of test isolates against carbapenems (Interpreted as per CLSI guidelines 2017)
From: AcrAB-TolC efflux pump system plays a role in carbapenem non-susceptibility in Escherichia coli
Antibiotics | MIC range examined (μg ml− 1) | No. (%) of isolates above the breakpoint (N = 35) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
< 0.25 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512 | >  512 | ||
Meropenem | 12 | – | – | 2 | 1 | 1 | 1 | 4 | 2 | 6 | 1 | 1 | – | 4 | 60 (n = 21) |
Ertapenem | 4 | – | 1 | 5 | 1 | 3 | – | – | 3 | 6 | 3 | 5 | 2 | 3 | 88.6(n = 31) |
Imipenem | 8 | – | 1 | 7 | 7 | – | 3 | 3 | 3 | 4 | 3 | 2 | 1 | 1 | 77 (n = 27) |