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Changes of CD4+T cell and B cell numbers in RT-SHIV infected macaques. A group of four macaques were either pretreated with a single dose of DMPA or untreated for 30 days prior to intravaginal virus challenge. Whole blood samples collected from macaques were analyzed at various weeks post infection (x-axis) for absolute CD4+T cells (panel A, DMPA; panel B, non-DMPA) and B cells (panel C, DMPA; panel D, non-DMPA) numbers that are shown at the y-axis.
