Figure 2
HIV-1 infectivity enhancing properties of human semen samples. 47 semen samples were analyzed for HIV-1-infectivity modulating effects. Results are arranged by infectivity enhancing potency. Semen was used in a 1:16 dilution during preincubation. The Y-axis denotes the infection rate relative to control infections performed without semen (depicted as dotted line) as percentage. Shown are mean values of quintuplicate infections. Error bars represent the standard error of the means.