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Volume 10, Number 12—December 2004
Research

VecTest as Diagnostic and Surveillance Tool for West Nile Virus in Dead Birds

Ward B. Stone*Comments to Author , Joseph C. Okoniewski*, Joseph E. Therrien*, Laura D. Kramer†, Elizabeth B. Kauffman†, and Millicent Eidson†
Author affiliations: *New York State Department of Environmental Conservation, Albany, New York, USA; †New York State Department of Health, Albany, New York, USA; VecTest for Detecting West Nile Virus

Main Article

Table 3

Frequency of false-positive VecTest resultsa in tests of swabs from cloacal and tissue sources in RT-PCR–negative birds

Species No. false-positive/no. RT-PCR–negative (%)
Cloacal Kidney Liver Blood
Cooper’s Hawk 0/3 1/7 1/2 1/9
Mourning Dove 0/2 0/7 0/4 0/7
Blue Jay 0/3 3/26 (12) 0/8 0/8
American Crow 0/23 (0) 19/112 (17) 6/51 (12) 14/47 (30)
American Robin 0/9 3/30 (10) 0/13 4/14
Gray Catbird 5/15 (33) 16/28 (57) 4/15 16/18
European Starling 0/8 4/30 (13) 3/11 3/5
Common Grackle 0/9 0/55 (0) 1/25 (4) 4/12
House Sparrow 0/9 0/15 1/5 4/15
Other avian 0/36 (0) 9/87 (10) 1/29 (3) 16/73 (22)
All species 5/117 (4) 55/397 (14) 17/163 (10) 62/208 (30)

aPrincipally narrow lines at the lower margin of the test zone on the dipstick; RT-PCR, reverse transcriptase–polymerase chain reaction.

Main Article

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Page updated: April 14, 2011
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