Table 2.
Prevalence of extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) and non-ESBL-Ec isolated from frozen chicken meat in different supershops.
| Name of Supershops | Total No. of Samples | No. of E. coli-Positive Isolates (%) | ESBL-Ec No. (%) |
Non-ESBL-Ec No. (%) |
|---|---|---|---|---|
| Brand 1 | 23 | 21 (91.3) | 21 (100.0) a | 0 |
| Brand 2 | 40 | 30 (75.0) | 21 (70.0) b | 9 (30.0) b |
| Brand 3 | 28 | 24 (85.8) | 24 (100.0) a | 0 |
| Brand 4 | 8 | 3 (37.5) | 2 (66.7) b | 1 (33.3) b |
| Brand 5 | 2 | 2 (100.0) | 2 (100.0) a,b | 0 |
| Brand 6 | 2 | 2 (100.0) | 1 (50.0) b | 1 (50.0) b |
| Brand 7 | 5 | 3 (60.0) | 3 (100.0) a,b | 0 |
| Brand 8 | 3 | 1 (33.3) | 0 | 1 (100.0) a |
| Brand 9 | 2 | 0 | - | - |
| Total | 113 | 86 (76.1) | 74 (86.0) | 12 (14.0) |
ESBL-Ec = ESBL-producing E. coli; non-ESBL-Ec = ESBL- non producing E. coli; a,b values in the same column with different superscripts differ significantly (p ≤ 0.05).