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Volume 10, Number 6—June 2004
Dispatch

Antibody Prevalence of West Nile Virus in Birds, Illinois, 2002

Adam M. Ringia*Comments to Author , Bradley J. Blitvich†, Hyun-Young Koo‡, Marshall Van de Wyngaerde*, Jeff D. Brawn‡, and Robert J. Novak*
Author affiliations: *Illinois Natural History Survey, Champaign, Illinois, USA; †Colorado State University, Fort Collins, Colorado, USA; ‡University of Illinois, Champaign, Illinois, USA

Main Article

Table 1

Birds, listed alphabetically by order, tested for WNV antibody in Illinois in 2002, including number of birds positive and number testeda

Order Common name No. tested WNV-positive no. (%) 95% CI
Anseriformes
Canada Goose
253
3 (1.2)
0.3 to 3.4

Wood Duck
120
3 (2.5)
0.5 to 7.1

3 additional species
35
0

Columbiformes
Mourning Dove
11
1 (9.1)
0.2 to 41.3

Rock Doveb
20
11 (55.0)
31.5 to 76.9
Galliformes
Chukarb
22
6 (27.3)
10.7 to 50.2

Domestic Chickenb
63
5 (7.9)
2.6 to 17.6

2 additional species
16
0

Passeriformes
Cedar Waxwing
5
1 (20.0)
0.5 to 71.6

Blue Grosbeak
2
1 (50.0)
1.2 to 98.7

Indigo Bunting
28
1 (3.6)
0.1 to 18.4

Northern Cardinal
129
16 (12.4)
7.3 to 9.4

American Crow
157
5 (3.2)
1.0 to 7.3

Red-winged Blackbird
39
3 (7.7)
1.6 to 20.9

Brown Thrasher
19
2 (10.5)
1.3 to 33.1

Gray Catbird
72
6 (8.3)
3.1 to 17.3

Ovenbird
32
1 (3.1)
0.1 to 16.2

House Sparrow
185
21 (11.4)
7.1 to 16.8

American Robin
79
3 (3.8)
0.8 to 10.7

Swainson’s Thrush
32
1 (3.1)
0.1 to16.2

45 additional species
422
0 (0)

Strigiformes
Great Horned Owlb
9
4 (44.4)
13.7 to 78.8

2 additional species
3
0

Other (5 orders)
10 species
31
0

Total (10 orders) 81 species 1784 94 (5.3) 4.2 to 6.4

aWNV, West Nile virus; CI, confidence interval.
bIndicates captive specimens.

Main Article

Page created: February 22, 2011
Page updated: February 22, 2011
Page reviewed: February 22, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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