CD8A and infection: These replacements were previously shown to be selected for by CD8+ T cells in 90-120-Ia+ macaques by 1 year after SIVmac239 infection and result in escape from recognition by Gag206-216, Gag241-249, Gag373-380, Vif114-124, Nef9-19, Nef89-97, and Nef193-203 epitope-specific CD8+ T cells, respectively [28,29].