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CD4+ T-cell depletion in the jejunum. The data of percentage of T cells in the jejunum that are CD4+ memory cells for four typical monkeys are shown (dark diamonds), along with our model prediction of the CD4+ T cells based on our mean estimate of the infectivity across all animals (black curve). Upper and lower 95% confidence interval values for the rate of infectivity across all animals are also shown (dashed curves). The viral load for each animal is plotted in gray.
