CD4 and infection: No differences were observed between the PTCs' resting CD4 T cell subsets' infection levels and those of the HICs (1.6, 2.7, 2.6 and 2.2 median log HIV DNA copies/million in the TN, TCM, TTM and TEM cells from HIC, respectively), except that the HIV DNA was undetectable in the TN cells from 9 out of 11 PTCs but only 4 out of 8 HICs (Figure 6A).