Figure 5.

Plasma recognition profiles of trophozoite-stage cultures of NF54 established from six volunteers on different days after infection. Profiles of unselected 3D7 (UM) and 3D7 selected in vitro for expression of VSA_SM-type IE surface antigens (SM) are shown for comparison. Recognition was measured by flow cytometry using IgG from Ghanaian adults and children (see Materials and Methods). Filled boxes indicate mean FITC-fluorescenceindex (MFI)abovea cut-off defined by the mean + 2 standard deviations of 8 Danish control plasma.