WNV Positive Horses in Minnesota
Final Data - 2002
Confirmed Findings
992 Horses (84 counties)
Kittson
Roseau
Lake of the Woods
Marshall
Koochiching
Pennington
Cook
Red Lake
Polk
Clearwater
Beltrami
Norman
Lake
St. Louis
Itasca
Mahnomen
Hubbard
Cass
Becker
Clay
Aitkin
Wadena
Carlton
Crow Wing
Otter Tail
Wilkin
Legend
Pine
Todd
Mille Lacs
Morrison
Douglas
Grant
Traverse
Number of Positive Horses
Kanabec
No positive horses
Benton
Stevens
Pope
Stearns
1-5
Isanti
Big Stone
Sherburne
Chicago
6-10
Swift
Anoka
Wright
Meeker
Ramsey
Hennepin
Lac Qui Parle
McLeod
Yellow Medicine
11-20
Washington
Kandiyohi
Chippewa
21+
Carver
Renville
Dakota
Scott
Sibley
Lincoln
Lyon
Redwood
Le Sueur
Nicollet
Rice
Goodhue
Wabasha
Brown
Pipestone
Rock
Murray
Nobles
Cottonwood
Jackson
Watonwan
Martin
Blue Earth
Faribault
Waseca
Steele
Dodge
Olmsted
Mower
Freeborn
Winona
Fillmore
Map Interpretation
Geographic variation of WNV-infected
humans, horses, and birds reflect, in
part, population density, awareness of
WNV, location of farms and stables,
and total number of birds submitted
for testing
0
12.5
25
50
75
100
125
150
Miles
Houston