CD4 and infection: Of the total cells infected, 40-60% were T cells and 20% were B cells, with a peak of infection day 6 (C3) or day 9 (C1, C2 and P2) p.i. The magnitude of infection of CD3+CD8+ T cells and CD14+ monocytes was lower (Fig. 7a) and the majority of infected cells among PBMCs were CD4+ lymphocytes (Fig. 7b; data are displayed for animals that had detectable and sufficient numbers of infected cells).