Figure 3: Comparison of CCR5 co-receptor expression on CD4 T-cell in HIV infected and the effect of PTB co-infection. A. Comparison of frequency of CCR5 positive CD4 T-cell, CD4+CD25high [Treg], CD4+CD25intermediate and CD4+CD25low/negative sub-population in HC, patients with PTB, HIV-1 infected with or without PTB co-infection. Data are expressed as Means with SEM [standard error of the mean] of percentage cells positive for CCR5. B. Comparison of CCR5 expression per cell on CD4 T-cell, CD4+CD25high [Treg], CD4+CD25intermediate and CD4+CD25low/negative sub-population. PBMC were stained with CD4-FITC, CD25-PE-Cy7, and CCR5-PE. Data are expressed as Means with SEM [standard error of the mean] of MFI of cells positive for CCR5.