Influenza (H5N1) Viruses in Poultry, Russian Federation, 2005–2006
Aleksandr S. Lipatov*12, Vasily A. Evseenko†1, Hui-Ling Yen*, Anna V. Zaykovskaya†, Alexander G. Durimanov†, Sergey I. Zolotykh†, Sergey V. Netesov†, Ilya G. Drozdov†, Gennadiy G. Onishchenko‡, Robert G. Webster* , and Alexander M. Shestopalov†
Author affiliations: *St Jude Children’s Research Hospital, Memphis, Tennessee, USA; †Federal State Research Institute Research Center for Virology and Biotechnology “Vector,” Koltsovo, Novosibirsk Region, Russian Federation; ‡Federal Service for Surveillance in Consumer Rights Protection and Human Well-being, Moscow, Russian Federation;
Figure 2. Phylogenetic relationships of the hemagglutinin (HA) (A), neuraminidase (NA) (B), polymerase basic protein 2 (PB2) (C), and nonstructural (NS) (D) genes of the 7 influenza (H5N1) viruses. Nucleotide sequences were analyzed by using the neighbor-joining method with 100 bootstraps. The HA phylogenetic tree was rooted to the HA gene of A/goose/Guangdong/1/96 (H5N1) virus. The NA phylogenetic tree was rooted to the NA gene of Puerto Rico/8/34 (H1N1) virus. The PB2 and NS trees were rooted to the PB2 and NS genes of B/Lee/40 virus.
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