Figure 3.

Plasma and tissue viral RNA levels in SIV and SHIV-infected macaques. Both animals groups displayed similar plasma viral loads at the time of tissue collection (p = 0.2)(panel A). The percentage of CD4⁺ T lymphocytes in the peripheral blood of SIV infected macaques at the time of tissue collection was significantly higher than in SHIV infected macaques (p = 0.004) (panel B). Epididymal (panel C) and testicular (panel D) SIV RNA viral loads were also similar between SIV and SHIV infected macaques.