Figure 2

Phylogenetic tree of NS1 sequences. Phylogenetic analysis of influenza A NS1 gene in H1N1v isolates with respect to H1N1 and H3N2 isolates from previous seasonal epidemics [Gen Bank:HM745138-HM745250].
Phylogenetic tree of NS1 sequences. Phylogenetic analysis of influenza A NS1 gene in H1N1v isolates with respect to H1N1 and H3N2 isolates from previous seasonal epidemics [Gen Bank:HM745138-HM745250].