Research Article
Fecal Colonization with Extended-Spectrum Beta-Lactamase and AmpC-Producing Escherichia coli
Table 2
Antimicrobial susceptibility profiles of ES
L- and AmpC-producing
E. coli isolates from fecal samples and associated resistance patterns.
| | Isolates number | -test MIC (mg/L) | Resistance genes | | PIP | TZP | CTX | CAZ | CAZ/CAL | FEP | ATM | FOX | CTT | CTT/CXT | IMI | GM | AK | CI | COL | TGC | FOS |
| | EC1 | >256 | <1 | >256 | 32 | 32/2 | 4 | 8 | 0.032 | 0.25 | <0.5/<0.5 | 0.06 | 0.5 | 2 | 1 | <0.016 | 0.25 | 0.016 | TEM-1+CTX-M-15+OXA-1 | | EC2 | >256 | <1 | >256 | 16 | 16/0.5 | 4 | 16 | 0.065 | 0.25 | <0.5/<0.5 | 0.12 | 1.5 | 3 | 0.25 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-15++SHV-1 | | EC3 | >256 | 64 | >256 | >256 | >32/4 | 12 | >256 | 0.125 | 0.25 | <0.5/<0.5 | 0.25 | 64 | 3 | 4 | <0.016 | 0.125 | <0.016 | TEM-1+CTX-M-15+OXA-1 | | EC4 | >256 | 8 | >256 | 32 | 32/0.064 | 8 | 16 | 0.032 | 0.06 | <0.5/<0.5 | 0.06 | 12 | 4 | 4 | <0.016 | 0.125 | <0.016 | TEM-1+CTX-M-15+OXA-1 | | EC5 | >256 | 32 | >256 | 16 | 16/0.5 | 4 | 12 | 0.125 | 0.125 | <0.5/<0.5 | 0.03 | 8 | 3 | 6 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-15+SHV-1 | | EC6 | >256 | 8 | >256 | >256 | >32/4 | 192 | >256 | 0.25 | 0.25 | <0.5/<0.5 | 0.06 | 192 | 48 | >32 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-15+OXA-1 | | EC7 | >256 | 8 | >256 | >256 | >32/4 | 128 | 192 | 0.25 | 0.25 | <0.5/<0.5 | 0.12 | 128 | 16 | >32 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-15+OXA-1 | | EC8 | >256 | <1 | >256 | >256 | >32/4 | 96 | 128 | 0.25 | 0.25 | <0.5/<0.5 | 0.06 | 96 | 0.5 | 0.25 | <0.016 | 0.25 | 0.125 | TEM-1+CTX-M-14+OXA-1 | | EC9 | >256 | 16 | >256 | 4 | 4/0.064 | 3 | 3 | 0.032 | 0.032 | <0.5/<0.5 | 0.06 | 8 | 2 | 0.25 | <0.016 | 0.38 | <0.016 | TEM-1+CTX-M-15 | | EC10 | >256 | 4 | >256 | 6 | 6/0.125 | 4 | 6 | 0.032 | 0.032 | <0.5/<0.5 | 0.125 | 16 | 1 | 0.5 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-15+SHV-1 | | EC11 | >256 | <1 | >256 | 48 | >32/1 | 8 | 24 | 0.032 | 0.032 | <0.5/<0.5 | 0.25 | 2 | 32 | 1 | <0.016 | 0.25 | <0.016 | TEM-1+CTX-M-14+OXA-1 | | EC12 | >256 | >256 | >256 | >256 | >32/>4 | 48 | >256 | 64 | 32 | 32/32 | 0.25 | >256 | 192 | 0.75 | <0.016 | 0.25 | 0.016 | TEM-1+CTX-M-15+CMY-2+OXA-1 | | EC13 | >256 | 128 | >256 | >256 | >32/>4 | 64 | >256 | 64 | 48 | >32/>32 | 0.25 | 128 | 4 | >32 | <0.016 | 0.38 | 0.016 | TEM-1+CTX-M-15+CMY-2 |
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PIP: piperacillin; TZP: piperacillin/tazobactam; CAZ: ceftazidime; CAZ/CAL: ceftazidime/ceftazidime + clavulanic acid; CTX: cefotaxime; FEP: cefepime; ATM: aztreonam; FOX: cefoxitin; CTT: cefotetan; CTT/CXT: cefotetan/cefotetan + cloxacillin; IMI: imipenem; GM: gentamicin; AK: amikacin; CI: ciprofloxacin; COL: colistin; TGC: tigecycline; FOS: fosfomycin.
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