Fig. 6

Parasitaemia levels in mice infected with Plasmodium berghei. Immunized mice challenge infected with malaria and parasitaemia levels were determined at day 10 post-challenge by flow cytometry. Naïve mice (a). Naïve mice infected with P. berghei. b Mice immunized with VLPs containing AMA-1 non-codon optimized were challenge infected (c) and mice immunized with VLPs containing codon-optimized were challenge infected (d). The average parasitaemia per group is shown in the bar graph (e *P < 0.05)