Figure 1. Pattern of HIV-1 shedding in the semen of 17 patients with at least one detectable seminal plasma viral load.

Each horizontal line represents the data for one subject. Seminal plasma viral loads are represented by circles coloured as follows: white, undetectable; dark grey, detectable. The viral loads (copies/ml) of detectable samples are annotated near the dark grey circles. Two juxtaposed circles represent samples provided at a one-hour interval.