Figure 5
From: Effect of semen and seminal amyloid on vaginal transmission of simian immunodeficiency virus
Schematic outline of the possible roles of viral dose and the presence of microlesions in the effect of seminal attachment factors on sexual transmission of SIV and HIV-1. Viral particles are indicated as black dots, mucus as pink line and the multi-layered vaginal epithelium by dashed lines. Infection of viral target T cells is indicated by the “+” symbol. Please note that this simplified model needs to be challenged in experimental studies.