Avian Influenza Virus Surveillance and Wild Birds: Past and Present

摘要: Influenza surveillance in wild birds has established that the aquatic of world are source influenza A viruses, which occasionally spread to domestic avian species and mammals, including humans, cause mild severe disease. With realization pandemics poultry people originate from inapparent infections birds, highly pathogenic H5N1 virus, much more attention been given understanding ecology birds. This article deals with major events establishing role natural history some unresolved issues. These include 1) whether all H5 H7 viruses have high pandemic potential, 2) (AI) is exchanged between Eurasia Americas, 3) AI virus now being perpetuated one most important Continued for essential resolve many unanswered questions concerning zoonotic pandemicity.