Fig. 3

Maximum Likelihood (ML) phylogenetic tree of the NS5B gene sequences from 47 reference sequences and 35 sample sequences. The tree branches, including the outer circle, are colored according to the HCV types and subtypes 1a and 1b. The tree scale refers to the number of nucleotide substitutions per site. The ML tree of the NS5B region showed the best grouping of the different genotypes, for reference and sample sequences. This discrimination even extended to the subtype for instance for G4 in light blue in the Figure