Volume 7, Number 4—August 2001
THEME ISSUE
West Nile Virus
West Nile Virus
Serologic Evidence for West Nile Virus Infection in Birds in the New York City Vicinity During an Outbreak in 1999
Nicholas Komar*
, Nicholas A. Panella*, Joseph E. Burns*, Stephen W. Dusza*, Tina M. Mascarenhas*, and Thomas O. Talbot†
, Nicholas A. Panella*, Joseph E. Burns*, Stephen W. Dusza*, Tina M. Mascarenhas*, and Thomas O. Talbot†
Table 1
Flavivirus-neutralizing antibody in birds during September 1999, by species
| Percent Virus Ab pos. ([95% CI], no.) |
||||||
|---|---|---|---|---|---|---|
| Order | Common name | Latin name | Total tested | WN | SLE | FLAV |
| Anseriformes | Canada Goose | Branta canadensis | 16 | 18.8 ([3.9-54.8], 3) | 0 | 6.2 ([0.1-34.8], 1) |
| Domestic Goose | Anser species | 11 | 63.6 | 0 | 0 | |
| ([30.8-89.1], 7) | ||||||
| Mallard/ Domestic Duck | Anas platyrhynchos | 21 | 4.8 ([0.1-26.5], 1) | 0 | 0 | |
| Muscovy Duck | Cairina moschata | 1 | 0 | 0 | 0 | |
| Mute Swan | Cygnus olor | 1 | 0 | 0 | 0 | |
| Ruddy Shelduck | Tadorna ferruginea | 7 | 0 | 0 | 0 | |
| Wood Duck | Aix sponsa | 1 | 0 | 0 | 0 | |
| Galliformes | Domestic Chicken | Gallus gallus | 157 | 56.7 | 0 | 0 |
| ([48.6-64.6], 89) | ||||||
| Common Peafowl | Pavo cristata | 10 | 0 | 0 | 0 | |
| Turkey | Meleagris gallopavo | 3 | 66.7 | 0 | 33.3 | |
| Columbiformes | Mourning Dove | Zenaida macroura | 3 | 66.7 | 0 | 0 |
| ([9.4-99.1], 2) | ([0.8-91.0], 1) | |||||
| ([9.4-99.1], 2) | ||||||
| Rock Dove | Columba livia | 120 | 13.3 | 0.8 | 1.7 | |
| ([7.8-20.7], 16) | ([0.2-4.6], 1) | ([0.2-5.9], 2) | ||||
| Passeriformes | American Robin | Turdus migratorius | 1 | 0 | 0 | 0 |
| Brown-headed | Molothrus ater | 5 | 40.0 | O | 0 | |
| Cowbird | ([5.3-85.3], 2) | |||||
| Common Grackle | Quiscalus quiscula | 2 | 0 | 0 | 0 | |
| European Starling | Sturnus vulgaris | 2 | 0 | 0 | 0 | |
| House Sparrow | Passer | 67 | 26.9 | 1.5 | 3.0 | |
| domesticus | ([16.8-39.1], 18) | ([0.3-8.0], 1) | ([0.4-10.4], 2) | |||
| Red-winged | Agelaius phoeniceus | 2 | 0 | 0 | 0 | |
| Blackbird | ||||||
| 430 | 32.6 | 0.5 | 1.2 | |||
| ([28.1-37.2], 140) | ([0.05-1.7], 2) | ([0.3-2.7], 5) | ||||
Ab: antibody; CI: confidence interval; WN: West Nile; SLE: St. Louis encephalitis; FLAV: flavivirus.
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