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Volume 11, Number 10—October 2005

Dispatch

Rapid West Nile Virus Antigen Detection

Nicholas A. Panella*Comments to Author , Kristen L. Burkhalter*, Stanley A. Langevin*, Aaron C. Brault*, Lynn M. Schooley*, Brad J. Biggerstaff*, Roger S. Nasci*, and Nicholas Komar*
Author affiliations: *Centers for Disease Control and Prevention, Fort Collins, Colorado, USA

Main Article

Table 1

Sensitivities of the VecTest and plaque assay in detecting West Nile virus in American Crows and House Sparrows, by swab type and day postmortem*

Species Day postmortem Assay Swab type
Oral, % positive (no. tested) Cloacal, % positive (no. tested)
American Crow 1 VecTest 90 (30) 90 (29)
Plaque 83 (30) 69 (29)
2 VecTest 93 (30) 100 (29)
Plaque 90 (30) 55 (29)
3 VecTest 97 (30) 83 (30)
Plaque 83 (30) 13 (30)
4 VecTest 100 (5) 80 (5)
Plaque 80 (5) 0 (5)
House Sparrow 1 VecTest 70 (10) 67 (9)
Plaque 90 (10) 56 (9)
2 VecTest 75 (8) 100 (2)
Plaque 75 (8) 50 (2)
3 VecTest 83 (6) NA
Plaque 83 (6) NA

*NA, not available (valid sampling was not possible given the physical state of the bird).

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