Table 1.
Wolf packs present, sampled and found to be positive for exposure to canine distemper virus on the Northern Range and Interior of Yellowstone National Park, Wyoming, from 1997 to 2010.
| Northern Range |
Interior |
|||
|---|---|---|---|---|
| year | packs present | packs positive/sampled (prevalence) | packs present | packs positive/sampled (prevalence) |
| 1997 | 3 | 0/3 (0) | 4 | 0/4 (0) |
| 1998 | 3 | 0/3 (0) | 4 | 0/3 (0) |
| 1999 | 4 | 3/4 (0.75) | 4 | 1/2 (0.5) |
| 2000 | 4 | 2/3 (0.67) | 4 | 0/4 (0) |
| 2001 | 5 | 0/4 (0) | 5 | 0/5 (0) |
| 2002 | 8 | 0/5 (0) | 6 | 0/2 (0) |
| 2003 | 9 | 0/6 (0) | 7 | 0/2 (0) |
| 2004 | 7 | 0/5 (0) | 9 | 0/5 (0) |
| 2005 | 6 | 6/6 (1) | 8 | 4/7 (0.57) |
| 2006 | 7 | 1/5 (0.2) | 6 | 0/3 (0) |
| 2007 | 6 | 0/5 (0) | 6 | 0/5 (0) |
| 2008 | 8 | 3/3 (1) | 7 | 1/2 (0.5) |
| 2009 | 6 | no data | 7 | no data |
| 2010 | 4 | no data | 7 | no data |