Fig. 3
From: Diverse origins of hepatitis C virus in HIV co-infected men who have sex with men in Hong Kong
Phylogenetic analyses of nucleotide sequences of the partial NS5B gene of HCV-3a (a) and HCV-6a (b). The trees were constructed by the neighbor-joining method based on Kimura-2 parameter model. Bootstrap values of >70 are given at branch nodes. Representative strains obtained from GenBank are identified by accession number, strain name, country of origin and year of isolation. HCV-1a is included as outgroup. Solid circles represent the HCV strains isolated in this study. Scale bars indicate nucleotide substitutions per site