CS and malaria: It should be noted that even life-long exposure to large numbers of malaria-infected mosquitoes rarely induces an anti-CS antibody response in excess of 10 μg/mL[34,35] using a qualified ELISA where the capture antigen consists of NANP repeats, and in infants and children living under these conditions, the values rarely exceed 0.5 μg/mL[36].