| County: | Marathon |
| # Sampled: | 1006 |
| # Analyzed: | 1005 |
| Positive for CWD: | 0 |
| CWD Year | Period | DNR Zone | # Sampled | # Analyzed | Positive for CWD |
|---|---|---|---|---|---|
| 2008 | Hunting Season Surveillance | Remainder of Wisconsin | 5 | 5 | 0 |
| 2008 | Out-of-Season Surveillance | Remainder of Wisconsin | 1 | 1 | 0 |
| 2007 | Out-of-Season Surveillance | Remainder of Wisconsin | 2 | 2 | 0 |
| 2006 | Hunting Season Surveillance | Remainder of Wisconsin | 375 | 375 | 0 |
| 2005 | Hunting Season Surveillance | Remainder of Wisconsin | 16 | 16 | 0 |
| 2005 | Out-of-Season Surveillance | Remainder of Wisconsin | 2 | 2 | 0 |
| 2004 | Hunting Season Surveillance | Remainder of Wisconsin | 2 | 2 | 0 |
| 2003 | Hunting Season Surveillance | Remainder of Wisconsin | 4 | 4 | 0 |
| 2003 | Out-of-Season Surveillance | Remainder of Wisconsin | 1 | 1 | 0 |
| 2002 | Hunting Season Surveillance | Remainder of Wisconsin | 564 | 563 | 0 |
| 1999-2001 | Initial CWD Discovery Surveillance | Remainder of Wisconsin | 34 | 34 | 0 |
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