Fig. 4: Competition ELISA IC50 values 4 weeks after the third vaccination for four natural AMA1 variants in malaria-naive and malaria-exposed adults.

Individual IC50 values 4 weeks after the third vaccination are shown. Colours and shapes within treatment groups indicate individual subjects. Summary statistics (geometric means with 95% confidence intervals) are shown in every panel. The red dashed line indicates geometric mean IC50 values across the four treatment groups. Comp = Competitor antigen, Coat = coating antigen.