Figure 6From: Mechanisms of HIV non-progression; robust and sustained CD4+ T-cell proliferative responses to p24 antigen correlate with control of viraemia and lack of disease progression after long-term transfusion-acquired HIV-1 infectionBreadth of Gag CTLs, showing responses to individual peptides selected from intersecting positive peptide pools, in non-progressor C49 (A), C64 (B), C18 (C), C13 showing an early and late time point (D), C53 (E), and C122 (F). Limit of detection 50 spots/106 PBMC.Back to article page