[1] CGMRC, KEMRI Wellcome Trust Res Programme, Kilifi, Kenya
[2] Pwani Univ, Biosci Res Ctr, Kilifi, Kenya
[3] Univ Oxford, Churchill Hosp, Ctr Clin Vaccinol & Trop Med, Nuffield Dept Med, Oxford, England
[4] London Sch Hyg & Trop Med, Fac Infect Dis, Dept Immunol & Infect, London, England
[5] London Sch Hyg & Trop Med, PHE Malaria Reference Lab, London, England