Table 3.
REBA-EAC assay results for the detection of ESBLs, AmpC β-lactamases, and carbapenemases in the 327 ESBL-phenotypically confirmed isolates.
| ESBL-phenotypically confirmed isolate (no. of isolates) | REBA-EAC assay | |
|---|---|---|
| GN-ID (no. of isolates) | β-lactamase content (no. of isolates) | |
| Escherichia coli (196) | E. coli (196) | CTX-M only (109) |
| CTX-M + TEM-type ESBL (68) | ||
| TEM-type ESBL (5) | ||
| CTX-M + CMY2 (4) | ||
| CTX-M + DHA (2) | ||
| CTX-M + NDM (2) | ||
| CTX-M + ACT (1) | ||
| CTX-M + KPC (1) | ||
| CTX-M + VIM (1) | ||
| ND (3) | ||
| Klebsiella pneumoniae (120) | K. pneumoniae (120) | CTX-M + DHA (58) |
| TEM-type ESBL (11) | ||
| CTX-M only (10) | ||
| SHV-type ESBL (9) | ||
| CTX-M + CMY2 (7) | ||
| CTX-M + SHV-type ESBL (5) | ||
| CTX-M + DHA + CMY2 (2) | ||
| CTX-M + IMP (1) | ||
| CTX-M + DHA + NDM (1) | ||
| DHA only (16) | ||
| Proteus mirabilis (4) | Gram negative (4) | CTX-M (4) |
| Klebsiella oxytoca (3) | K. oxytoca (2) | SHV-type ESBL (2) |
| K. oxytoca (1) | CTX-M (1) | |
| Enterobacter spp. (3) | Enterobacter spp. (2) | CTX-M (2) |
| Enterobacter spp. (1) | CTX-M + ACT (1) | |
| Providencia stuartii (1) | Gram negative (1) | CTX-M (1) |
ND, not detected.