Figure 2. . . Phylogenetic tree of coxsackie B viruses inferred by using neighbor-joining analysis. The tree was generated by using the Tamura-Nei distance model and 1,000 bootstrap replicates. Scale bar represents estimated phylogenetic divergence. Specific coxsackie B virus serotypes (CB1–6) and corresponding GenBank accession number are shown on the right. Poliovirus was included as an outgroup. Coxsackie virus B clade shown in boldface; the reported coxsackie B virus sequence is listed in red. CB, coxsackie B virus.
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