FIG. 3.

Phylogenetic tree of all individual HIV-1 pol sequences obtained from the genital tract and plasma of Patient 38. (A) Phylogenetic tree composed of all 159 individual sequences of the RT-protease region obtained from Patient 38. Fourteen of the 23 recombinants (61%) appeared on one branch of the tree, which is depicted in gray and enclosed by a bracket. (B) Enlargement of the branch bracketed in (A). Recombinants appear in red. "Tips" refers to the number of terminal branches in the portion of the tree displayed in full in (A).