Vector Borne Disease List               Last Updated: 4/23/2007
Year Disease Human Cases Birds Tested Birds Positive Horses Tested Horses Positive Mosquito Pools Collected Mosquito Pools Positive Ticks Tested Ticks Positive
2007 West Nile Virus 0 0 0 0 0 0 0 * *
2007 Lacrosse Encephalitis 0 * * * * 0 0 * *
2007 Rocky Mountain Spotted Fever 0 * * * * * * 0 0
2007 Lyme Disease 0 * * * * * * 0 0
2006 West Nile Virus 0 29 2 0 0 33 1 * *
2006 Lacrosse Encephalitis 1 * * * * 0 0 * *
2006 Rocky Mountain Spotted Fever 0 * * * * * *    
2006 Lyme Disease 2 * * * * * *    
2005 West Nile Virus 1 13 2 7 0 76 10 * *
2005 Lacrosse Encephalitis 1 * * * *     * *
2005 Rocky Mountain Spotted Fever 0 * * * * * * 12 1
2005 Lyme Disease 2 * * * * * * 0 0
2004 West Nile Virus 0 9 0 1 0 29 6 * *
2004 Lacrosse Encephalitis 0 * * * *     * *
2004 Rocky Mountain Spotted Fever 0 * * * * * * 6 0
2004 Lyme Disease 1 * * * * * *    
2003 West Nile Virus 1 22 3   0 1,933 1 * *
2003 Lacrosse Encephalitis 1 * * * * 0 0 * *
2003 Rocky Mountain Spotted Fever 0 * * * * * * 16 0
2003 Lyme Disease 1 * * * * * * 0 0
2002 West Nile Virus 4 33 26 5 5 64 12 * *
2002 Lacrosse Encephalitis 1 * * * * 0 0 * *
2002 Rocky Mountain Spotted Fever 0 * * * * * * 0 0
2002 Lyme Disease 2 * * * * * * 0 0
2001 West Nile Virus 0   1 0 0 0 0 * *
2001 Lacrosse Encephalitis 1 * * * * 0 0 * *
2001 Rocky Mountain Spotted Fever 0 * * * * * * 0 0
2001 Lyme Disease