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Representative dot plots (A) and histograms (B) showing downregulation of CD4 and HLA-B*57 proteins, respectively, on HIV-1-infected cells (GFP positive) for an elite suppressor (ES) and a chronic progressor (CP). The expressions of HLA-B*57 on uninfected CD4+ T cells (quadrant 1) and infected CD4low cells (quadrant 3) are shown in the histogram. Color images available online at www.liebertonline.com/aid.
