Table 2.
Contamination rates for all 3 types of samples processed
| |
Contamination rates |
||
|---|---|---|---|
| Media inoculated | Fresh/frozen samples (liquid only) | Routine slaughter surveillance histologically non-compatible granulomas | Histologically compatible and other high risk samples |
| BACTEC 12B |
0.07 |
N/A |
0.07 |
| MGIT |
0.18 |
0.24 |
0.18 |
| M7H11P |
N/A |
0.14 |
0.34 |
| 7H10P |
N/A |
0.24 |
0.49 |
| M-LJ |
N/A |
0.07 |
N/A* |
| 7H11AA&P | N/A | 0.29 | N/A* |
Samples submitted fresh or frozen were inoculated only using the 2 liquid media systems. Routine slaughter surveillance samples were inoculated using MGIT and 4 solid media. High risk samples were inoculated on both liquid systems and at least 3 solid media.
* Media results for these samples were not included in the log linear model.