FIG. 2.

Infection of freshly isolated CD4⁺ T cells with X4 and R5 pseudotyped viruses. (A) Representative infection data for uninfected donors, ES, and viremic patients. (B) Percent infection of CD3⁺ CD4⁺ T cells as measured by GFP expression. The percentage of GFP⁺ CD3⁺ cells was normalized to the percentage of CD4⁺ CD3⁺ cells in the uninfected controls for each patient. P values were derived from the Wilcoxon-Mann-Whitney rank-sum test. The median is indicated by a black bar. (C) Correlation between the percentage of cells infected with R5 virus and the percentage of cells infected with X4 virus.