Figure 2
From: A new reassortment of influenza A (H7N9) virus causing human infection in Beijing, 2014
Phylogenetic analysis of PB1, PA, NP and NS genes of H7N9 influenza viruses.
The phylogenies were inferred by the Maximum Composite Likelihood model of the Neighbor-Joining algorithm with the software MEGA5 and 1000 bootstrap replicates were applied. The branches for the H7N9 and H9N2 viruses are in red and blue, respectively. The red dots represent the Beijing isolates. The blue dots represent the representative isolates, A/Anhui/1/2013(H7N9) and A/chicken/Jiangsu/SC537/2013(H7N9).
