Fig. 3From: Controlled human malaria infection by intramuscular and direct venous inoculation of cryopreserved Plasmodium falciparum sporozoites in malaria-naïve volunteers: effect of injection volume and dose on infectivity ratesRelationship between dose of PfSPZ Challenge and pre-patent period. Geometric means (horizontal bars) and 95% confidence intervals (vertical bars) for pre-patent periods. Individual pre-patent periods are shown.Back to article page