Table 6.
Distribution of Antimicrobial Resistance Genes in C. jejuni and C. coli Isolates from Raw Milk and Carcass Samples
| No. of isolates (%) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tet(O) | aph-3-1 | blaOXA-61 | cmeB | ||||||||||
| Species | Resistant phenotype and the occurrence of cognate gene | Total | Milk | Carcass | Total | Milk | Carcass | Total | Milk | Carcass | Total | Milk | Carcass |
| C. jejuni (n=32) | Resistant with genes | 4 (12.5) | 4 (22.2) | 0 | 0 | 0 | 0 | 8 (25.0) | 6 (33.3) | 2 (14.3) | 6 (18.8) | 4 (22.2) | 2 (14.3) |
| Resistant without genes | 2 (6.3) | 2 (11.1) | 0 | 3 (9.4) | 3 (16.7) | 0 | 21 (65.6) | 15 (83.3) | 6 (42.9) | 16 (50.0) | 12 (66.7) | 4 (28.6) | |
| Susceptible with genes | 6 (18.8) | 4 (22.2) | 2 (14.3) | 1 (3.1) | 0 | 0 | 1 (3.1) | 0 | 1 (5.6) | 4 (12.5) | 6 (33.3) | 3 (21.4) | |
| C. coli (n=19) | Resistant with genes | 2 (10.5) | 2 (16.7) | 0 | 1 (5.3) | 0 | 1 (14.3) | 10 (52.6) | 6 (50.0) | 4 (57.1) | 5 (26.3) | 3 (25.0) | 2 (28.6) |
| Resistant without genes | 1 (5.3) | 1 (8.3) | 0 | 4 (21.1) | 3 (25.0) | 1 (14.3) | 9 (47.4) | 8 (66.7) | 1 (14.3) | 9 (47.4) | 6 (50.0) | 3 (42.9) | |
| Susceptible with genes | 3 (15.8) | 1 (8.3) | 2 (28.6) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |