Fig. 2 (A) Phylogenetic trees of the sequences identified in this study, classified as genotype D: Subgenotype D3. (B) Subgenotypes D1, D2 and D4. Only sequences belonging to these subgenotypes where shown individually, all the other ones were collapsed. The analysis was conducted using a Bayesian analysis using BEAST v1.8.3 software with 296 sequences (GenBank 197 and 99 of this study) of 1270 nucleotides of S/polymerase in the HBV genome. Probability posterior values are shown in the branches. The sequences characterized in this study are marked with the symbol # and the sequences taken from  GenBank  are identified by subgenotype, followed by the access number and geographical origin. Sequences from members of the same family were shown with a circle and each family is identified by F and a number (F1–6 and F8).