Figure 5

Positive ELISpot activities with CSP or AMA1 peptide pools with Methods 1, 2 or 3. The top three rows for each volunteer denote the three replicate assays for the first time point, and the second three rows denote the three replicate assays for the second time-point. An assay is considered positive if at least one peptide pool was positive using that method. All positive CSP and AMA1 activities are shown in light or medium gray respectively. The responses of the five volunteers (v1024, v1036, v1039, v1054 and v1056, for whom both CSP and AMA1 assays were performed) were combined and shown in dark gray. *Assay not done.