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Volume 14, Number 9—September 2008

Dispatch

Highly Pathogenic Avian Influenza Virus (H5N1) Isolated from Whooper Swans, Japan

Yuko Uchida, Masaji Mase, Kumiko Yoneda, Atsumu Kimura, Tsuyoshi Obara, Seikou Kumagai, Takehiko SaitoComments to Author , Yu Yamamoto, Kikuyasu Nakamura, Kenji Tsukamoto, and Shigeo Yamaguchi
Author affiliations: National Institute of Animal Health, Kannondai, Japan (Y. Uchida, M. Mase, T. Saito, Y. Yamamoto, K. Nakamura, K. Tsukamoto, S. Yamaguchi); Japan Wildlife Research Center, Taito-ku, Tokyo, Japan (K. Yoneda); Akita Animal Hygiene Service Center of Akita Prefecture, Akita, Japan ( A. Kimura, T. Obara, S. Kumagai);

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Figure 2

Phylogenetic tree constructed based on the hemagglutinin (HA) 1 region (966 bp) of the HA gene of the highly pathogenic avian influenza viruses (H5N1). Clade designation follows the criteria proposed by the World Health Organization/World Organisation for Animal Health/Food and Agriculture Organization H5N1 Evolution Working Group (8). Representative strains of the previous highly pathogenic avian influenza outbreaks in Japan are in boldface. Scale bar represents number of nucleotide substitution per site.

Figure 2. Phylogenetic tree constructed based on the hemagglutinin (HA) 1 region (966 bp) of the HA gene of the highly pathogenic avian influenza viruses (H5N1). Clade designation follows the criteria proposed by the World Health Organization/World Organisation for Animal Health/Food and Agriculture Organization H5N1 Evolution Working Group (8). Representative strains of the previous highly pathogenic avian influenza outbreaks in Japan are in boldface. Scale bar represents number of nucleotide substitution per site.

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