Figure 2.

Analysis of T cell proliferation of non-stimulated (A) and PHA-stimulated (B) cord mononuclear cells of a newborn from a HIV-infected mother. After gating of CD3 cells, events were analyzed for size and complexity (forward-scatter and side-scatter gates), from which resting (R1-green) and blast cells (R2-blue) were separated. T-lymphocyte subsets were then analyzed. Dead cells (red) were excluded from all analyses. T cell proliferation was the difference between the percentages of PHA-stimulated blasts and non-stimulated blasts.