作　　者： ; ; ; ;

机构地区： 中国科学院遥感应用研究所

出　　处： 《安徽农业科学》 2009年第28期13603-13605,共3页

摘　　要： [目的]分析影响高致病性禽流感传播的主要因素。[方法]将家禽养殖场分为未感染和已感染2类,流动禽鸟分为易感者和具有传染性者2类,在此基础上,建立SI传播模型。[结果]n_0(初始流动禽鸟感染数)、λ(鸟-家禽养殖场的传染率)和μ(鸟-鸟传染率)3个因子对禽流感的传播速度起着重要作用。[结论]控制流动禽鸟的发病数量、减少病鸟与家禽的直接的或间接接触和给家禽注射疫苗是控制高致病性禽流感疫情的有效措施。 [ Objective] The purpose was to analyze the main influencing factors of highly pathogenic avian influenza. [ Method ] All poultry farm could be divided into two types：susceptible group and infected group, and all free birds （traditional poultry and wild birds）could be divid- ed into two types：susceptible group and infectious group, on this basis, SI transmission model was established. [ Result ] n0 （the initial number of infectious free birds）,λ （the infectious rate between free birds and poultry farm）andμ （the infectious rate between free birds）were played an important role in the propagation velocity of propagation velocity. [ Conclusion] controlling the quantity of infectious free birds, reducing the direct or indirect contact between infectious birds and poultry, and injecting the vaccine were effective measures.

关 键 词： 高致病性禽流感 模型 家禽养殖场 候鸟 控制措施

领　　域： [农业科学] [农业科学] [农业科学]