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Comparison of partial nucleotide sequences of (A) 5’UTR, (B) C protein, and (C) E protein among clones derived from parental tick-borne encephalitis virus (0 P) and virus variants 40 PS, 40 IRE, and LT IRE. Numbers in parentheses represent the frequency of a particular substitution among the sequenced clones. Dots represent conserved nucleotides, letters indicate substitutions.
