George Stein Jr. Meliton N. Novilla Sarah S. Hurley Robert J. Fink Roy D. Montgomery 1981 <p><span>An outbreak of duck virus enteritis occurred in a flock of captive waterfowl composed of mallards (<i>Anas platyrhynchos</i>), black ducks (<i>Anas rubripes</i>), and Canada geese (<i>Branta canadensis</i>). Although all three species were housed together, morbidity and mortality were confined to the 227 black ducks and Canada geese, of which 180 died and the rest were left in a weakened condition. Lesions are given for 20 black ducks and 4 Canada geese dying from DVE. In addition, both horizontal and vertical transmission are discussed as possible sources of the virus that caused this outbreak.</span></p> application/pdf 10.2307/1589844 en American Association of Avian Pathologists An outbreak of duck virus enteritis (duck plague) in a captive flock of mixed waterfowl article