CD4 and coinfection: To assess the impact of cART + 3HP on T cellactivation, we studied expression of HLA-DR and CD69 on CD4+ T cells in BAL atweek 11 post Mtb infection (or 2 weeks post SIV co-infection, prior toinitiation of cART + 3HP) and at necropsy (end of 12 weeks of cART + 3HP treatment) in all4 study groups.