Plasma and liver amino acid concentrations vary in host infected with Plasmodium yoelii . Amino acid concentrations in plasma (A) and liver (B) were analysed on five days post-infection with Plasmodium yoelii. Shown are amino acids concentrations of uninfected mice (blue bars), infected mice (orange bars). Each bar represents mean ± SD of six mice. Asterisks denote: *p<0.05; **p<0.01; ***p<0.001. BALB/c mice were infected with 1×106 RBCs parasitized with P. yoelii.