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HBHA-responding cells as a percentage of CD4 cells and their absolute numbers. HBHA-responding cells as a percentage of CD4 cells (left) and absolute numbers (right) are shown for CD154+ TNF-α+ (total responding), CD154+ TNF-α+ IFN-γ+, and CD154+ TNF-α+ IFN-γ+ IL-2+ cells. Results for Mann-Whitney U test comparisons between the actively and latently infected groups are displayed.
