We identified a Eurasian-origin influenza A(H8N4) virus in North America by sampling wild birds in western Alaska, USA. Evidence for repeated introductions of influenza A viruses into North America by migratory birds suggests that intercontinental dispersal might not be exceedingly rare and that our understanding of viral establishment is incomplete.
All Keywords
【저자키워드】 viruses, Influenza, virus, United States, USA, North America, Alaska, wild birds, migratory birds, influenza A(H8N4), introduction, H8N4,
【저자키워드】 viruses, Influenza, virus, United States, USA, North America, Alaska, wild birds, migratory birds, influenza A(H8N4), introduction, H8N4,