> Departments > Health & Environment > Communicable Disease Control > Animal and Insect-borne Disease Monitoring > West Nile Virus > Statistics

West Nile Virus Statistics

WNV Year to Year 2003 2004 2005 2006 2007 2008 2009 2010
1st Positive Mosquito pool 7-28-03 6-8-04 7-14-05 7-26-06 6-19-07 7-10-08 6-2-09 7-19-10
Total Positive Pools/Total pools tested 52 2 15 106 / 1,835 ~247/~2,485 25/1,391 43/682 35/1,243
First Positive Bird 6-26-03 8-19-04 7-31-05 8-2-06 6-03-07 8-12-08 N/A 7/31/10*
Total Positive Birds/ Total Birds Tested 125 3 / 36 tested
plus 2 raptors		 30/ 400 (CDC tests) 5 / 24 8/19 2/4 Birds no longer tested 5/31 tested as part of CDC pvt research
Larimer County First Positive Human 7-22-03 6-10-04 6-29-05 7-26-06 7/13/07 6-27-08 7-15-09 7-01-10
LC Total Positive Humans 546 17 13 42 96 19 26 15
LC WNV related deaths 9 0 0 1 0 1 0 0
State Total WN Cases 2,947 291 106 345 576 71 103 81
State WN Related Deaths 63 4 2 7 7 1 3 4
Begin Mosquito Trap   3-31-04 7-14-05 5-2006 6-25-07 5-22-08 5-28-09 6-1-10
Adult Mosquito Cntrl 9-1-03 7-13-04 6-27-05 6-2006 7-17-07 None by LC None by LC None by LC

*This bird was not tested until September 2010 as part of a CDC research study.