| SAMPLE | NO. OF SAMPLES EXAMINED | NO. OF POSITIVE | % TOTAL ISOLATES (n = 56) |
| Beef | 37 | 15 | 26.78*** |
| Offal | 19 | 7 | 12.50** |
| Fishes | 49 | 20 | 35.71*** |
| Overall | 105 | 42 | 75.00 |