Table 4.
Minimum inhibitory concentration (MIC) values of antimicrobial agents against ESBL-producing E. coli
| Strains | Cefoxitin (µg/mL) R ≥ 32 |
Cefepime (µg/mL) R ≥ 16 |
Aztreonam (µg/mL) R ≥ 4 |
Ceftazidime (µg/mL) R ≥ 16 |
Cefotaxime (µg/mL) R ≥ 64 |
Ciprofloxacin (µg/mL) R ≥ 4 |
Meropenem (µg/mL) R ≥ 4 |
Imipenem (µg/mL) R ≥ 4 |
Ampecillin (µg/mL) R ≥ 32 |
|---|---|---|---|---|---|---|---|---|---|
| MIC | MIC | MIC | MIC | MIC | MIC | MIC | MIC | MIC | |
| 1059 | 8 | 32 | 256 | 128 | 1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1129 | 8 | <0.5 | <0.5 | <0.5 | <0.5 | 16 | <0.5 | <0.5 | 1024 |
| 1060 | 4 | 64 | 64 | 64 | >1024 | >1024 | <0.5 | <0.5 | >1024 |
| 1097 | 4 | 64 | 128 | 32 | >1024 | <0.5 | <0.5 | <0.5 | >1024 |
| 4110 | 8 | 8 | 128 | 16 | 64 | 32 | <0.5 | <0.5 | 1024 |
| 7055 | 1 | 16 | <0.5 | 32 | 1024 | 1 | <0.5 | <0.5 | >1024 |
| 1015 | 16 | 16 | 32 | 8 | 64 | 1024 | <0.5 | <0.5 | 512 |
| 2001 | 4 | <0.5 | 128 | 64 | 1024 | 64 | <0.5 | <0.5 | >1024 |
| 1114 | 8 | 256 | 512 | 128 | >1024 | 128 | <0.5 | <0.5 | >1024 |
| 1007 | 8 | 16 | 128 | 32 | 128 | 128 | <0.5 | <0.5 | >1024 |
| 1111 | 256 | 128 | 128 | 128 | >1024 | 64 | <0.5 | <0.5 | >1024 |
| 1128 | 16 | 16 | 64 | 16 | 256 | 1024 | <0.5 | <0.5 | 1024 |
| 1005 | 4 | 4 | 64 | 16 | 1024 | 16 | <0.5 | <0.5 | >1024 |
| 1116 | 8 | 16 | 32 | 8 | >1024 | 64 | <0.5 | <0.5 | >1024 |
| 1010 | 2 | <0.5 | <0.5 | <0.5 | 2 | 32 | <0.5 | <0.5 | >1024 |
| 1041 | 512 | 1024 | >1024 | 1024 | >1024 | 1024 | <0.5 | 1 | >1024 |
| 1089 | 8 | 128 | 128 | 32 | 1024 | 64 | <0.5 | <0.5 | >1024 |
| 1031 | 16 | 32 | 128 | 32 | 256 | 32 | <0.5 | <0.5 | >1024 |
| 1055 | 16 | 256 | 256 | 256 | >1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1057 | 16 | 64 | 512 | 128 | 1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1075 | 8 | 8 | 512 | 64 | 32 | 64 | <0.5 | <0.5 | 1024 |
| 1065 | 8 | 128 | 512 | 256 | 1024 | <0.5 | <0.5 | <0.5 | >1024 |
| 1085 | 32 | 64 | 64 | 16 | 512 | 64 | <0.5 | <0.5 | >1024 |
| 1053 | 16 | 256 | 512 | 128 | >1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1054 | 32 | 256 | 256 | 128 | >1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1013 | 16 | 16 | 64 | 32 | 512 | 16 | <0.5 | <0.5 | >1024 |
| 1011 | 16 | 64 | 256 | 64 | 1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1034 | 16 | 64 | 256 | 128 | 256 | 128 | <0.5 | <0.5 | >1024 |
| 1028 | 8 | 32 | 256 | 64 | 512 | <0.5 | <0.5 | <0.5 | >1024 |
| 1045 | 16 | 4 | 128 | 8 | 32 | 1024 | <0.5 | <0.5 | 1024 |
| 1118 | 32 | 32 | 128 | 32 | 256 | 1024 | <0.5 | <0.5 | 1024 |
| 1096 | 1 | <0.5 | >1024 | <0.5 | <0.5 | <0.5 | <0.5 | <0.5 | <0.5 |
| 1110 | 8 | 128 | 256 | 64 | 512 | 1024 | <0.5 | <0.5 | >1024 |
| 1025 | 8 | 16 | >1024 | 32 | 256 | 32 | <0.5 | <0.5 | >1024 |
| 1016 | 16 | 16 | 128 | 64 | 256 | 16 | <0.5 | <0.5 | >1024 |
| 4003 | 8 | 16 | 256 | 64 | 512 | 1024 | <0.5 | <0.5 | >1024 |
| 90003 | 32 | 128 | >1024 | 512 | >1024 | 64 | <0.5 | <0.5 | >1024 |
| 1020 | 128 | <0.5 | 4 | 32 | 8 | <0.5 | <0.5 | <0.5 | >1024 |
| 1094 | 16 | 32 | 256 | 64 | 512 | 64 | <0.5 | <0.5 | >1024 |
| 1019 | 8 | 128 | >1024 | 512 | >1024 | 64 | <0.5 | <0.5 | >1024 |
| 1012 | 16 | <0.5 | <0.5 | 4 | <0.5 | 32 | <0.5 | <0.5 | 8 |
| 2002 | 8 | 16 | 1024 | 32 | 256 | 32 | <0.5 | <0.5 | >1024 |
| 4045 | 8 | 8 | 128 | 32 | 256 | 64 | <0.5 | <0.5 | >1024 |
| 1081 | 8 | 32 | 256 | 32 | 512 | 1024 | <0.5 | <0.5 | >1024 |
| 1018 | 4 | 32 | 128 | 64 | 1024 | <0.5 | <0.5 | <0.5 | >1024 |
| 3043 | 4 | <0.5 | <0.5 | <0.5 | <0.5 | 16 | <0.5 | <0.5 | 1024 |
| 1091 | 16 | 128 | 512 | 256 | >1024 | 1024 | <0.5 | <0.5 | >1024 |
| 3067 | 32 | <0.5 | 16 | 64 | 64 | <0.5 | <0.5 | <0.5 | >1024 |
| 2003 | 16 | 64 | 256 | 64 | 512 | 4 | <0.5 | <0.5 | >1024 |
| 1103 | 32 | 32 | 16 | 2 | 64 | 1024 | <0.5 | <0.5 | >1024 |
| 1120 | 16 | 32 | 64 | 32 | 256 | 32 | <0.5 | <0.5 | >1024 |
| 1119 | 8 | 64 | 256 | 64 | 1024 | 1024 | <0.5 | <0.5 | >1024 |
| 1098 | 8 | 8 | 128 | 32 | 128 | 64 | <0.5 | <0.5 | 1024 |
| 1124 | 8 | 64 | 512 | 256 | 1024 | 32 | <0.5 | <0.5 | >1024 |
| 1104 | 16 | 16 | 16 | 1 | 64 | <0.5 | <0.5 | <0.5 | >1024 |
| 1125 | 8 | 32 | 128 | 64 | 512 | <0.5 | <0.5 | <0.5 | >1024 |
| 1102 | 8 | 64 | 256 | 64 | 512 | 128 | <0.5 | <0.5 | >1024 |
| 1117 | 16 | 128 | 256 | 128 | 1024 | <0.5 | <0.5 | <0.5 | >1024 |
| 1105 | 8 | <0.5 | <0.5 | <0.5 | <0.5 | <0.5 | <0.5 | <0.5 | >1024 |