Phylogenetic relationships based on the <i>P1</i>, <i>P2</i>, <i>P3</i> genome regions among Chinese strains and other EV-A strains.

<p>The phylogenetic trees based on the nucleotide sequence for the <i>P1</i> (a), <i>P2</i> (b) and <i>P3</i> (c) coding sequences were constructed from nucleotide sequence alignment using the neighbor-joining algorithm of MEGA 5.0 software. The numbers at the nodes indicate bootstrap support for that node (percent of 1000 pseudoreplicates). The scale bars represent the genetic distance, and all tree have the same scale.