Figure 5From: Direct venous inoculation of Plasmodium falciparum sporozoites for controlled human malaria infection: a dose-finding trial in two centres Parasite quantification by qPCR. Blood was assessed every other day beginning on Day 5 and on the day of microscopically detected parasitaemia if no sampling was scheduled for that day in Tübingen. In Barcelona blood was sampled every day from Days 6 to 9 and twice daily from Day 9 onward. The dotted line indicates the limit of quantification of qPCR (30 parasites per mL).Back to article page