Table 2. Distribution of species and molecular types of plasmid-mediated AmpC beta-lactamase- and ESBL-producing Enterobacteriaceae (each 39 patients).
| pAmpC (n = 39) | ESBL (n = 39) | |||||
|---|---|---|---|---|---|---|
| Species | Patients, n (%) | Molecular type | Molecular type, n (%) | Patients, n (%) | Molecular type | Molecular type, n (%) |
| Escherichia coli | 29 (74) * | CMY-2 | 26 (90) | 31 (79) | CTX-M | 25 (81) |
| CMY-31 | 1 (3) | TEM, SHV | 3 (10) | |||
| ACC-1 | 1 (3) | n.a. | 3 (10) | |||
| DHA-1 | 1 (3) | |||||
| Klebsiella pneumoniae | 6 (15) * | DHA-1 | 5 (83) | 7 (18) | CTX-M | 5 (71) |
| CMY-2 | 1 (17) | TEM, SHV | 2 (29) | |||
| Klebsiella oxytoca | 1 (3) | DHA-1 | 1 | 0 | — | — |
| Proteus spp. | 3 (8) | CMY-2 | 3 (100) | 1 (3) | TEM | 1 |
Abbreviations: pAmpC, plasmid-mediated AmpC beta-lactamase; ESBL, Extended-Spectrum Beta-Lactamase; n.a., not available
* In one patient both E. coli and K. pneumoniae were isolated; this patient counts only once for the E. coli group