Figure 2From: Superinfection with drug-resistant HIV is rare and does not contribute substantially to therapy failure in a large European cohort Scheme of phylogenetic trees representing superinfection or transmission cluster. Orange nodes denote sequences from the individual under examination; grey nodes represent control sequences. Panel A illustrates a case of superinfection, while Panel B illustrates a transmission cluster. The sequences of the patient under study fail to form a monophyletic cluster in both cases; however, the number of control sequences in the smallest subtree that includes the sequences of the patient tends to be much greater in the case of superinfection (see main text).Back to article page