Frequency of mutation in the complete HTLV-1 genome sequences.

(A) Comparison of the number of mutations in the genome sequences between HTLV-1 isolates from Taiwan and Japan. The horizontal bars indicate the mean and 95% confidence intervals (CI). Comparison of the number of mutations among codon positions (B) and clinical status (C). The columns and vertical bars indicate the mean and 95% CI. (D) Comparison of the number of mutations per base substitution in the samples from Taiwan. (E) Comparison of the number of G-to-A mutations between HTLV-1 isolates from Taiwan and Japan.