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Volume 20, Number 5—May 2014

Dispatch

Novel Avian Influenza A(H7N9) Virus in Tree Sparrow, Shanghai, China, 2013

Baihui Zhao1, Xi Zhang1, Wenfei Zhu1, Zheng Teng, Xuelian Yu, Ye Gao, Di Wu, Enle Pei, Zhengan Yuan, Lei Yang, Dayan Wang, Yuelong Shu, and Fan WuComments to Author 
Author affiliations: Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China (B. Zhao, X. Zhang, Z. Teng, X. Yu, Y. Gao, Z. Yuan, F. Wu); National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China (W. Zhu, L. Yang, D. Wang, Y. Shu); Shanghai Wildlife Conservation and Management Center, Shanghai (D. Wu, E. Pei)

Main Article

Figure 2

Phylogenetic tree of the hemagglutinin (A) and neuraminidase (B) genes of influenza A(H7N9) viruses. Multiple alignments were constructed by using the MUSCLE algorithm of MEGA software version 5.10 (www.megasoftware.net). Phylogenetic trees were constructed by using the neighbor-joining method with bootstrap analyses of 1,000 replications. Bootstrap values >60% are shown in the nodes. Sequences of human influenza A(H7N9) viruses are shown in purple, novel subtype H7N9 viruses from poultry (ch

Figure 2. Phylogenetic tree of the hemagglutinin (A) and neuraminidase (B) genes of influenza A(H7N9) virusesMultiple alignments were constructed by using the MUSCLE algorithm of MEGA software version 5.10 (www.megasoftware.net)Phylogenetic trees were constructed by using the neighbor-joining method with bootstrap analyses of 1,000 replicationsBootstrap values >60% are shown in the nodesSequences of human influenza A(H7N9) viruses are shown in purple, novel subtype H7N9 viruses from poultry (chickens, ducks, and pigeons) in blue, novel subtype H7N9 viruses from the environment in green, and novel subtype H7N9 viruses from wild birds in redScale bar indicates base substitutions per site.

Main Article

1These authors contributed equally to this article.

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