TABLE 2.
Summary of RT-QuIC results from ticks collected from CWD-positive and -negative elka
| Elk CWD status | Total no. of elk |
RT-QuIC result for winter ticks |
||
|---|---|---|---|---|
| No amplification | Suspect | Positive | ||
| Early (B or RLN) | 5 | 5 | 0 | 0 |
| Middle (B and RLN) | 24 | 18 | 6 | 0 |
| Late (B and RLN and symptomatic) |
1 | 0 | 0 | 1 |
| Negative | 106 | 99 | 7 | 0 |
a
Disease stage estimates were again based on immunohistochemical detection of PrPCWD in the elk’s brain (B) and/or retropharyngeal lymph node (RLN) and clinical signs consistent with late-stage infection, including behavior abnormalities and poor body condition scores.