Fig. 6.

Comparison in parasitaemia at day 5 post-challenge. AL alum-adjuvanted yeast lysates, three bi-weekly immunizations (Experiment III), L non-adjuvanted yeast lysates, 5 weekly immunizations (Experiment II). Alum group of mice immunized with alum only. Bars correspond to medians among parasitized mice in the group. NI not infected over 10 days post challenge (value below the limit of detection). Asterisk indicates significant median differences (one symbol for p < 0.05 and two for p < 0.005, Mann–Whitney nonparametric test). Decrease in parasitaemia median value in immunized groups in comparison with the respective naive group from the same experiment is indicated in folds