Emerging Infectious Disease ISSN: 1080-6059

Human Infections with Novel Reassortant Influenza A(H3N2)v Viruses, United States, 2011

Stephen Lindstrom, Rebecca Garten, Amanda Balish, Bo Shu, Shannon Emery, LaShondra Berman, Nathelia Barnes, Katrina Sleeman, Larisa Gubareva, Julie Villanueva, and Alexander Klimov

Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (S. Lindstrom, R. Garten, A. Balish, B. Shu, S. Emery, L. Berman, K. Sleeman, L. Gubareva, J. Villanueva, A. Klimov); Battelle, Atlanta (N. Barnes)

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Figure 2

Phylogenetic analysis of the A) hemagglutinin and B) matrix genes of influenza A(H3N2)v viruses. Sequences obtained from human A(H3N2)v isolates in the United States during 2011 are shown in boldface; sequences of proposed vaccine virus are underlined. Scale bars indicate number of base substitutions per site.

Figure 2. . Phylogenetic analysis of the A) hemagglutinin and B) matrix genes of influenza A(H3N2)v viruses. Sequences obtained from human A(H3N2)v isolates in the United States during 2011 are shown in boldface; sequences of proposed vaccine virus are underlined. Scale bars indicate number of base substitutions per site.

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