| Methods | Positive rate for different concentrations (copies/μl; number of positive results/number of total samples, %) | Ct average of the lowest concentration | |||
| 3.2 × 103 | 3.2 × 102 | 3.2 × 10 | 3.2 | ||
| Our method | 20/20 (100%) | 20/20 (100%) | 20/20 (100%) | 20/20 (100%) | 36.23 |
| OIE recommended method | 20/20 (100%) | 20/20 (100%) | 18/20 (90%) | 15/20 (75%) | 38.63 |
| Commercially available kit | 20/20 (100%) | 20/20 (100%) | 18/20 (90%) | 13/20 (65%) | 39.16 |