Fig. 5

Forest plot representing the half-life per Ag in days. The half-lives based on the repeated measurement samples were estimated in days. A linear regression model was fitted on log-transformed MFI data taking into account age as factor. Estimated slopes and their 95% confidence intervals were used to obtain the half-life in days (\(\text{t}_{1/2} = \frac{{ - { \ln }(2)}}{\lambda }\)). This forest plot represents the half-lives of each Ag ordered from the shortest to the longest half-life. The purple crosses represent an estimated half-life shorter than 7.5 months, the blue squares range from 8.5 months until 1 year, the red dots range from 13 until 19 months, and the green triangles represent an estimated half-life longer than 2 years. The error bars are the 95% confidence intervals. A remarkable founding in this figure is that P. falciparum shows a clear difference between the short and long lived Ab-responses, while for the P. vivax only long lived Ab-responses are seen