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Volume 9, Number 3—March 2003

Research

Experimental Infection of North American Birds with the New York 1999 Strain of West Nile Virus

Nicholas Komar*Comments to Author , Stanley Langevin*, Steven Hinten*, Nicole Nemeth*†, Eric Edwards*†, Danielle L. Hettler*†, Brent S. Davis*, Richard A. Bowen†, and Michel L. Bunning*‡
Author affiliations: *Centers for Disease Control and Prevention, Fort Collins, Colorado, USA; †Colorado State University, Fort Collins, Colorado, USA; ‡Office of the Surgeon General, United States Air Force, Bolling Air Force Base, Washington, D.C., USA

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Table 10

West Nile virus reservoir competence index values derived for 25 species of birds

Common name Susceptibility Mean infectiousness Mean duration (days) Reservoir competence
index
Blue Jay
1.0
0.68
3.75
2.55
Common Grackle
1.0
0.68
3
2.04
House Finch
1.0
0.32
5.5
1.76
American Crow
1.0
0.5
3.25
1.62
House Sparrow
1.0
0.53
3
1.59
Ring-billed Gull
1.0
0.28
4.5
1.26
Black-billed Magpie
1.0
0.36
3
1.08
American Robin
1.0
0.36
3
1.08
Red-winged Blackbird
1.0
0.33
3
0.99
American Kestrel
1.0
0.31
3
0.93
Great Horned Owl
1.0
0.22
4
0.88
Killdeer
1.0
0.29
3
0.87
Fish Crow
1.0
0.26
2.8
0.73
Mallard
1.0
0.16
3
0.48
European Starling
1.0
0.12
1.8
0.22
Mourning Dove
1.0
0.11
1.7
0.19
Northern Flicker
1.0
0.06
1
0.06
Canada Goose
1.0
0.1
0.3
0.03
Rock Dove
1.0
0
0
0
American Coot
1.0
0
0
0
Japanese Quail
1.0
0
0
0
Northern Bobwhite
1.0
0
0
0
Ring-necked Pheasant
1.0
0
0
0
Monk Parakeet
1.0
0
0
0
Budgerigar 0.7 0 0 0

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