Abstract The germfree cage-complex was used to separate completely the vertical and horizontal infections in order to study the spreading characteristic of chick white scours (CWS).

• 摘要 应用无菌笼具复合体，使雏鸡处于微生物群受控和严格隔离状态，把鸡白痢病垂直传播和水平传播截然分开，以便研究其传播特征。