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Phylogenetic tree of varicella-zoster virus strains by the neighbor-joining method. The countries from which specimens were obtained are shown: Bang, Bangladesh; Brasil, Brazil; Jap, Japan; GB, Guinea Bissau; Neth, The Netherlands; Sind, South India; ZAMB, Zambia. Bootstrap values separating clades A, B, and C are shown. + denotes additional viruses with identical sequence.
