Table 1.
ESBL, AmpC production and AmpC fox gene detection and coexistence of two enzymes among the Salmonella isolates
|
Salmonella spp. (number screened) |
Cefoxitin resistance test, +ve (%) | ESBL, +ve (%) | Plasmid-mediated AmpC β-lactamase production (%) | AmpC fox gene (%) | ESBL + AmpC (%) | ESBL + AmpC fox gene (%) |
|---|---|---|---|---|---|---|
| Salmonella typhi (13) | 12 (92.3) | 6 (46.2) | 4 (30.8) | 7 (53.8) | 2 (15.4) | 2 (15.4) |
| Salmonella typhimurium (10) | 8 (80.0) | 3 (30.0) | 2 (20.0) | 4 (40.0) | 0 (0.0) | 0 (0.0) |
| Salmonella enteritidis (8) | 8 (100) | 4 (50.0) | 3 (37.5) | 3 (37.5) | 1 (12.5) | 1 (12.5) |
| Salmonella paratyphi (4) | 2 (50.0) | 1 (25.0) | 1 (25.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Salmonella choleraesuis (5) | 2 (40.0) | 2 (40.0) | 0 (0.0) | 2 (40.0) | 0 (0.0) | 0 ().0) |
| Total (40) | 32 (80.0) | 16 (40.0) | 10 (25.0) | 16 (40.0) | 3 (7.5) | 3 (7.5) |
Abbreviation: ESBL, extended-spectrum β-lactamase.