CD8A and infection: Instead, anti-post-ART SIV efficacy of CD8+ cells post-ART exhibited a significant correlation with Gag-specific CD8+ T-cell responses (R = 0.8857, P = 0.0333) but not with Vif-specific CD8+ T-cell responses at week 34 post-infection (2 weeks after ART cessation) (Fig. 6b).