TABLE 7.
Comparison of the elastase test and the aprV2/B2 qPCR test using 404 D. nodosus isolates obtained from 38 Australian sheep flocksa
| Laboratory diagnosis (elastase test) | No. of isolates with a laboratory diagnosis (aprV2/B2 qPCR) of:b |
||
|---|---|---|---|
| Benign | Virulent | Total | |
| Benign | 51 | 139 | 190 |
| Virulent | 1 | 213 | 214 |
| Total | 52 | 352 | 404 |
a
Lesion swabs were not collected for microbiological culture from flocks 39 and 40. McNemar's χ2 = 137.00, P < 0.0001, kappa statistic = 0.275 (95% CI, 0.207–0.343).
b
qPCR according to reference 21. Benign, isolates that were negative for the aprV2 allele; virulent, isolates that were positive for the aprV2 allele.