Genetic Analysis of Avian Influenza Viruses: Cocirculation of Avian Influenza Viruses with Allele A and B Nonstructural Gene in Northern Pintail (<i>Anas acuta</i>) Ducks Wintering in Japan

<table>Phylogenetic analysis of avian influenza viruses isolated from Northern pintails in Tohoku district, Japan. Included are different segment of AIVs. Individual tree was generated using neighbor-joining method and 1,000 replications of bootstrap resampling. The number at each branch point indicates percentage probability that the resultant topology is correct. The ORF of each gene segment (a) H1 (1701 bp), (b) N1 (1410 bp), (c) N2 (1410 bp), (d) NS (838 bp), and (e) NP (1497 bp) was employed to generate phylogram. Viruses of the present study were marked by black circle (●) in the tree. Strains with no host were assumed to human isolates.</table>

Influenza Research and Treatment

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Figure 1: Genetic Analysis of Avian Influenza Viruses: Cocirculation of Avian Influenza Viruses with Allele A and B Nonstructural Gene in Northern Pintail (<i>Anas acuta</i>) Ducks Wintering in Japan 

Figure 1 | Genetic Analysis of Avian Influenza Viruses: Cocirculation of Avian Influenza Viruses with Allele A and B Nonstructural Gene in Northern Pintail (Anas acuta) Ducks Wintering in Japan 