Volume 16, Number 3—March 2010
Research
Surveillance for West Nile Virus in American White Pelicans, Montana, USA, 2006–2007
Table 1
Deaths in pelicans infected by WNV and WNV human disease in counties with nesting American white pelican colonies, United States, 2003–2007*
Year | County, state | Earliest date of pelican death | Earliest date of disease in humans | Difference, d |
---|---|---|---|---|
2003 | Big Stone, MN | Jul 1 | Aug 25 | 56 |
Phillips, MT | Aug 1 | Aug 15 | 14 | |
Sheridan, MT | Jul 23 | Aug 1 | 9 | |
Stutsman, ND | Jul 15 | Jul 26 | 11 | |
Day, SD |
Jul 28 |
Jul 14 |
−14 |
|
2004 |
Big Stone, MN |
May 30 |
Sep 1 |
93 |
2005 | Sheridan, MT | Jun 23 | Jul 14 | 52 |
Stutsman, ND | Jun 17 | Jul 18 | 31 | |
Day, SD |
Jul 6 |
Aug 26 |
51 |
|
2006 | Big Stone, MN | Jun 15 | Jul 27 | 42 |
Washoe, NV | Jul 14 | Jul 10 | −4 | |
Stutsman, ND | Jul 24 | Aug 1 | 8 | |
Day, SD | Jul 19 | Aug 1 | 13 | |
Brown, WI |
Jul 15 |
Aug 10 |
26 |
|
2007 | Stutsman, ND | Jul 7 | Jul 1 | −6 |
Day, SD | Jul 9 | Jun 27 | −12 |
*WNV, West Nile virus.