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Flow cytometry of whole blood. Whole blood fluorescence-activated cell sorting revealed an early decrease in the proportion of circulating CD8+ lymphocytes at 2 days post inoculation (DPI; A), whereas CD4 lymphocytes do not differ from baseline (B). Dashed lines represent average values (CD8 and CD4 T cells) of uninfected animals. ∗∗∗P < 0.001.
