Appendix Figure. Phylogenetic trees showing genetic relationships among Human Enterovirus 71 (HEV71) isolates. The neighbor-joining trees were constructed from alignment of nucleotide sequences of P1 (nt 747-3332) (panel A) and P2 (nt 3333-5066) (panel B). Bootstrap values are shown as percentage derived from 1,000 samplings, and the scale reflects the number of nucleotide substitutions per site along the branches. Isolates from fatal cases are denoted with asterisks.
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