Burgess E C, Yuill T M
J Wildl Dis. 1983 Apr;19(2):77-81. doi: 10.7589/0090-3558-19.2.77.
Duck plague (DP) carrier mallards (Anas platyrhynchos) were subjected to seven environmental and physiological conditions in an attempt to stimulate DP virus shedding. The conditions were: food quality, social interaction, reproductive state, time dependency of food and water, noise, exercise, and sex of bird. Cloacal and oral swabs were taken daily for 10 days and assayed for DP virus content. The stimulated carrier ducks shed DP virus intermittently in amounts up to 10(8) ffus/swab/day (the highest 10-fold dilution still showing specific fluorescence). Unstimulated DP carrier ducks shed only up to 10(3) ffus/swab/day. Reproductive state and exercise were the only two factors that acted in concert to stimulate the shedding of virus in oral secretions.
对鸭瘟（DP）带毒绿头鸭（Anas platyrhynchos）进行了七种环境和生理条件的处理，试图刺激鸭瘟病毒的排出。这些条件包括：食物质量、社交互动、生殖状态、食物和水的时间依赖性、噪音、运动以及鸭的性别。连续10天每天采集泄殖腔和口腔拭子，检测鸭瘟病毒含量。受到刺激的带毒鸭间歇性排出鸭瘟病毒，排出量高达10⁸荧光单位/拭子/天（最高10倍稀释仍显示特异性荧光）。未受刺激的鸭瘟带毒鸭排出量仅达10³荧光单位/拭子/天。生殖状态和运动是仅有的两个协同作用刺激口腔分泌物中病毒排出的因素。
