CD8A and cytomegalovirus retinitis: In the TB IRIS group, this result is exemplified by the representative week-8 plots of a patient with TB IRIS, which shows the maturation subpopulations of CD8+ T cells (Figure 4A) and activated cells among naive cells (Figure 4B), in contrast with the same plot from a representative Other IRIS subject (Figure 4C, D, a patient developing CMV retinitis by week 8).