Studies on the susceptibility of terrestrial wild bird and the propagation to highly pathogenic avian influenza virus

本研究假设高致病性禽流感病毒的多种感染途径，在野外进行了感染实验。结果表明：(1)病毒通过湖水从被感染的野生水禽传播给陆生野鸟(2)被感染的陆生野鸟入侵鸡舍，病毒通过与鸡接触传播(3)在陆生野鸟之间传播，很难考虑感染会依次传播的可能性。这些结果支持了陆生野鸟对鸡舍的入侵预防措施对高致病性禽流感的流行预防非常重要的观点。

In this study, the infection experiment supposing various infection routes of highly pathogenic avian influenza virus in field was conducted.The results obtained showed that (1) the virus spreads from infected wild waterfowl to terrestrial wild bird through the water of lake(2) the infected terrestrial wild bird invades in a henhouse, and a virus spreads by contacting with a chickenbut (3) between terrestrial wild birds, it is hard to consider a possibility that infection will spread one after another.These results support the notion that the invasion preventive measures of the terrestrial wild bird into a henhouse are very important on the epidemic prevention of highly pathogenic avian influenza avian influenza.