Figure 2
From: Novel reassortant swine H3N2 influenza A viruses in Germany
Phylogenetic analyses of HA and NA genes using Bayesian tree inference. Relevant lineages and sublineages are indicated. The scale bars indicate substitutions per site. (a) Analysis of 347 HAH3 sequences of the seasonal H3 lineage. Details of strains included in this analysis are presented in Supplementary Fig. 1. Colour code: green, H3seasN2seas sequences; brown, avian and equine reference sequences; red, swH3N2 lineage H3.hu1 sequences; purple, swH3N2 lineage H3.hu2 sequences; magenta, swH3N2 lineage H3.hu3 sequences; light blue, Gent1984/Diepholz-like swH3N2. (b) Analysis of 841 NAN2 sequences. Details of strains included in this analysis are presented in Supplementary Fig. 3. Colour code: red, swH3N2 strains with H3.hu1 HA; purple, swH3N2 strains wih H3.hu2 HA; magenta, swH3N2 strains with H3.hu3 HA; dark blue, swH1N2 sequences; light blue, Gent1984/Diepholz-like swH3N2; green: human seasonal H3N2 sequences, brown: avian NAN2 sequences (for reference).
