Figure 2. Phylogeny of E25 based on 875 nt of the VP1 gene generated by the neighbor-joining algorithm implemented in MEGA (version 5.0) using the Kimura two-parameter substitution model and 1000 bootstrap pseudo-replicates.
•Strains isolated in this investigation. □Strains isolated from Shandong. ○Strains isolated from other provinces of China.