Fig. 1From: Mosquito bite immunization with radiation-attenuated Plasmodium falciparum sporozoites: safety, tolerability, protective efficacy and humoral immunogenicityFlow diagram of immunized and control subjects. 41 subjects met all eligibility criteria and were assigned to the true-immunization group (n = 22), mock-immunization group (n = 13) and infectivity controls (n = 5). True-immunized group contained subjects enrolled in 1999–2000 and 2001–2002Back to article page