Table 2.
Antimicrobial resistance profiles, β-lactamase genes, and plasmid content of colistin-resistant E. albertii isolates.
| Isolate | Origin | Antibiotic resistance profile | β-Lactamase gene∗∗ | Plasmids (kb)∗∗∗ |
|---|---|---|---|---|
| SP140128 | Mutton | PRL, SAM∗, FEP, CXM, KF, CRO, ATM, K, S, NA, NOR, CIP, SXT∗, TE, F∗, C | blaCTX-M-55 | 113, 56 |
| SP140089 | Chicken meat | PRL, SAM∗, FEP, CXM, KF, CRO, ATM, K, S, NA, NOR, CIP∗, SXT∗, TE, F, C | blaCTX-M-55 | 113, 56, 45 |
| SP140149 | Chicken intestine | PRL, SAM∗, FEP, CXM, KF, CRO, ATM, K, S, NA, LEV∗, NOR, CIP, SXT∗, TE, F∗, C | blaCTX-M-55 | 113, 56, 45 |
| SP140150 | Chicken intestine | PRL, SAM∗, FEP, CXM, KF, CRO, ATM, K, S, NA, NOR, CIP, SXT∗, TE, F, C | blaCTX-M-55 | 113, 56, 45 |
PRL, piperacillin; SAM, ampicillin/sulbactam; FEP, cefepime; CXM, cefuroxime; KF, cephalothin; CRO, ceftriaxone; ATM, aztreonam; K, kanamycin; S, streptomycin; NA, nalidixic acid; LEV, levofloxacin; NOR, norfloxacin; CIP, ciprofloxacin; SXT, trimethoprim/sulfamethoxazole; TE, tetracycline; F, furadantin; C, chloramphenicol. ∗Intermediate sensitivity to antibiotics. ∗∗blaCTX-M-55 type was determined by sequencing. ∗∗∗Plasmid sizes were estimated by S1-nuclease PFGE method.