From the field: Efficacy of detecting Chronic Wasting Disease via sampling hunter-killed white-tailed deer
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Abstract
Surveillance programs for Chronic Wasting Disease (CWD) in free-ranging cervids often use a standard of being able to detect 1% prevalence when determining minimum sample sizes. However, 1% prevalence may represent >10,000 infected animals in a population of 1 million, and most wildlife managers would prefer to detect the presence of CWD when far fewer infected animals exist. We wanted to detect the presence of CWD in white-tailed deer (Odocoileus virginianus) in Pennsylvania when the disease was present in only 1 of 21 wildlife management units (WMUs) statewide. We used computer simulation to estimate the probability of detecting CWD based on a sampling design to detect the presence of CWD at 0.1% and 1.0% prevalence (23-76 and 225-762 infected deer, respectively) using tissue samples collected from hunter-killed deer. The probability of detection at 0.1% prevalence was <30% with sample sizes of ???6,000 deer, and the probability of detection at 1.0% prevalence was 46-72% with statewide sample sizes of 2,000-6,000 deer. We believe that testing of hunter-killed deer is an essential part of any surveillance program for CWD, but our results demonstrated the importance of a multifaceted surveillance approach for CWD detection rather than sole reliance on testing hunter-killed deer.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | From the field: Efficacy of detecting Chronic Wasting Disease via sampling hunter-killed white-tailed deer |
| Series title | Wildlife Society Bulletin |
| DOI | 10.2193/0091-7648(2004)32[267:FTFEOD]2.0.CO;2 |
| Volume | 32 |
| Issue | 1 |
| Year Published | 2004 |
| Language | English |
| Publisher | BioOne Complete |
| Description | 6 p. |
| First page | 267 |
| Last page | 272 |
| Country | United States |
| State | Pennsylvania |
| Google Analytic Metrics | Metrics page |