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Figure 7 | Virology Journal

Figure 7

From: Surveillance in eastern India (2007-2009) revealed reassortment event involving ns and PB1-F2 gene segments among co-circulating influenza a subtypes

Figure 7

Phylogenetic analysis of PB1 gene. Phylogenetic analysis of PB1 gene (nucleotide) of seasonal inf A (H1N1/H3N2) strains circulating in eastern India with respect to representative vaccine, prototype, pH1N1/2009 and concurrent A/H1N1 strains reported worldwide was carried out taking B/Lee/40 as an out-group. The tree was created by using neighbor-joining method and bootstrapped values of ≥70% were given for each node. The 2007 A/H1N1 eastern India strains which showed A/H3N2-like PB1are highlighted (♦).

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