Drug Trafficking Routes and Hepatitis B in Injection Drug Users, Manipur, India
Figure 1. Phylogenetic relationships among the sequences of s gene from hepatitis B virus strains isolated in this study (shown with prefix "IDU") compared with reference sequences from GenBank (accession nos. are shown). Genotype and subgenotypes are indicated at each main branch and subbranch, respectively. Percentage of bootstrap replications supporting the clusters (>75%) are also shown at the nodes.