Table 1. Distribution of antimicrobial resistance genes among ESBL-producing Enterobacter spp.
β-lactamases | PMQR determinants | |||||||||||
ESBL-producingEnterobacter spp. (n) | Inducible AmpC | Derepressed AmpC | CTX-M-2 | CTX-M-3 | TEM-1 | SHV-12 | qnrA * | qnrB | qnrC | qnrS | qepA | aac(6')-Ib-cr |
E. cloacae (18) | 1 | 16 | 0 | 7 | 9 | 2 | 2 | 0 | 0 | 7 | 0 | 0 |
E. aerogenes (4) | 1 | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
All qnrA were qnrA1.