PMA/ionomycin stimulation of peripheral blood mononuclear cells from uninfected (squares) and chronically SIV-infected (circles) RMs. Production of IL-17 and IFNγ in Vδ1, Vδ2, and memory CD4 T cells is shown for both the uninfected and chronically SIV-infected cohorts. P values were calculated using the Mann-Whitney U test.