Fig. 2

Plasmodium 18S rRNA RT-PCR quantification of parasite burden in the liver (a) and peripheral blood (b) exactly 5 days after intravenous inoculation of PfSPZ or PkSPZ. P. falciparum data reported in log₁₀ copies of 18S rRNA/g tissue as detected by the P. falciparum target. P. knowlesi data reported in log₁₀ copies of 18S rRNA/g tissue as detected by the pan-Plasmodium target. Each data point represents one liver lobe or replicate blood sample. ND, not detected. F: female; M: male. See Table 1 for data by individual lobe