Table C.2.
Summary data on performance of IDEXX HerdChek BSE Scrapie Antigen Test Kit for the detection of CWD (based on manufacturer's data)
| Reported status | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test | Species | Tissue | IHC +ve | IHC −ve | Total | Test result | Se % | 95 C.I. % | Sp % | 95 C.I. % | Comment |
| HerdChek BSE‐Scrapie Test | Wapiti | Brain | 8 | 0 | 8 | Positive | 100% | 67.5–100% | 100% | 81.5–100% | 2013 |
| 0 | 22 | 22 | Negative | ||||||||
| 8 | 22 | 30 | Total | ||||||||
| HerdChek BSE‐Scrapie Test | Wapiti | Tonsil | 6 | 0 | 6 | Positive | 85.7% | 42–99.2% | 100% | 83.9–100% | 2013 |
| 1 | 20 | 21 | Negative | ||||||||
| 7 | 20 | 27 | Total | ||||||||
| HerdChek BSE‐Scrapie Test | Wapiti | LN | 6 | 1 | 7 | Positive | 100% | 61–100% | 95.4% | 78.2–99.2% | 2013 |
| 0 | 20 | 20 | Negative | ||||||||
| 6 | 21 | 27 | Total | ||||||||