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. 2012 Dec 28;7(5):783–790. doi: 10.1111/irv.12072

Figure 2.

Figure 2

Phylogenetic trees of swine and human Brazilian isolates. Neighbor‐joining tree of (a) hemagglutinin (HA ‐ 1638nt) and (b) neuraminidase (NA ‐ 1358nt). The HA and NA gene sequences of human and swine pandemic H1N1 and seasonal H1N1 and H1N2 viruses were included in the analysis. Closed diamonds = Brazilian pandemic influenza viruses isolated from swine in this study; open diamond = Brazilian pandemic influenza virus isolated from human in this study; A/swine/Brazil/12A/2010: pandemic influenza virus previously isolated from pigs in Brazil.