禽流感(Avian Influenza,AI)是由甲型流感病毒引起的以亚临床轻度呼吸道症状、产蛋率降低及急性高度致死为主要临床表现的禽类传染病。由于病毒亚型与宿主的不同,禽类在感染禽流感病毒(AIV)后,可表现出无症状带毒(隐性感染)、轻度症状,以及急性致死性疾病,其中高致病性禽流感被国际兽疫局定为A类传染病,并被列入国际生物武器公约动物类传染病名单。 Avian Influenza (AI) is an avian infectious disease caused by Influenza A virus, which is the main clinical manifestation of subclinical mild respiratory symptoms, reduced egg production and acute high lethality. Due to the different virus subtypes and host, avian infection with the avian influenza virus (AIV) can show asymptomatic poisoning (latent infection), mild symptoms and acute lethal diseases, of which the highly pathogenic bird flu It has been classified as a type A infectious disease by the OIE and has been included in the list of zoonoses of the International Biological Weapons Convention.