Fig. 1
From: Plasmodium knowlesi in pig-tailed macaques: a potential new model for malaria vaccine research
Time to detection of blood stage parasites after challenge of pig-tailed macaques with infectious P. knowlesi sporozoites (PkSPZ). A, B Naïve pig-tailed macaques from cohorts 1 and 2 were challenged intravenously with 2.5 × 103 PkSPZ and monitored for time to blood stage infection by Plasmodium 18S rRNA RT-PCR and thin blood smear. C, D Approximately 2 months after drug-cure, cohort 2 animals were re-challenged and monitored as above. See Table 1 for data by individual animal