Avian influenza virus,a kind of infectious disease,is a serious threat to wild birds and poultry and human health. Avian influenza virus can not only spread between the same species,but also across species,or even have a serious threat to human health. Wild fowl is influenza virus natural host and repository,but due to the particularity of its life habit,relevant research is relative lag. The epidemic situation of wild fowl influenza virus,adaptation of wild fowl on influenza virus and existing problems in ...