Figure 2. Phylogenetic analysis of TBEV strains based on the envelope region. Phylogenetic trees constructed using the ML method based on the Tamura-Nei model in MEGA version 5 (1000 bootstrap replicates). The ML tree were rooted with the sequences of the OHFV (Genbank accession no. X66694). The scale bar indicates the nucleotide substitutions per position. The 10 Korean strains identified in this study are marked with open circles. ML = maximum likelihood; OHFV = Omsk hemorrhagic fever virus.
