FIG. 4.

Unrooted neighbor-joining trees constructed with the 5′NCR nucleotide sequences of GBV-C/HGV isolated from serum, liver, and PBMC samples of patients 1 (a) and 2 (b). The clones are designated P1 or P2 (indicating those isolated from patient 1 or 2, respectively), plus S, L, or P (indicating the source as serum, liver, or PBMC, respectively), followed by the clone number and, in parentheses, the number of clones with identical sequences in each compartments. The bootstrap values are given in the nodes of the trees.