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Volume 12, Number 9—September 2006
Dispatch

West Nile Virus Infection in Commercial Waterfowl Operation, Wisconsin

Jennifer K. Meece*Comments to Author , Tamara A. Kronenwetter-Koepel*, Mary F. Vandermause*, and Kurt D. Reed*
Author affiliations: *Marshfield Clinic Research Foundation, Marshfield, Wisconsin, USA

Main Article

Table

Species of dead birds collected at investigation farm*

Species of dead birds WNV positive, n (%) No. WNV negative
Blue-winged teal (Anas discors) 16 (100) 0
Northern pintail (A. acuta) 4 (100) 0
Green-winged teal (A. carolinensis) 3 (100) 0
Falcated teal (A. falcate) 3 (100) 0
Northern shoveler (A. clypeata) 1 (100) 0
Barrow's goldeneye (Bucephala islandica) 1 (100) 0
Cackling goose (Branta hutchinsii) 1 (100) 0
Eurasian widgeon (A. penelope)† 25 (96.1) 1
American widgeon (A. americana) 15 (93.8) 1
Siberian red-breasted goose (Branta ruficollis) 3 (50.0) 3
Ross goose (Chen rossii) 2 (40.0) 3
Mountain quail (Oreortyx pictus) 0 2
Common eider (Somateria mollissima) 0 1
Hooded merganser (Lophodytes cucullatus)† 0 1
Canvasback (Aythya valisineria)† 0 1
Domestic turkey (Melleagris gallopavo) 0 1

*WNV, West Nile virus.
†Species reported to Centers for Disease Control and Prevention avian mortality database as having tested positive for WNV from 1999 to present (6).

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References
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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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