In 2014, novel highly pathogenic avian influenza A H5N2, H5N5, H5N6, and H5N8 viruses caused outbreaks in Asia, Europe, and North America. The H5 genes of these viruses form a monophyletic group that evolved from a clade 2.3.4 H5N1 variant. This rapid emergence of new H5Nx combinations is unprecedented in the H5N1 evolutionary history.
All Keywords
【저자키워드】 viruses, Evolution, Influenza, variant, hemagglutinin, Avian Influenza, H5N1, virulent, subtype, highly pathogenic, HPAI, reassortant, rapid emergence, monophyletic group, clade 2.3.4, reassortment events,
【저자키워드】 viruses, Evolution, Influenza, variant, hemagglutinin, Avian Influenza, H5N1, virulent, subtype, highly pathogenic, HPAI, reassortant, rapid emergence, monophyletic group, clade 2.3.4, reassortment events,