1 Kenya Medical Research Institute Wellcome Trust Research Programme, Nairobi, Kenya. Electronic address: sakech@kemri-wellcome.org.
2 Division of Parasitic Diseases and Malaria, Center for Global Health, US Centers for Disease Control and Prevention, Kisumu, Kenya.
3 Center for International Child Health, BC Children's Hospital, Child and Family Research Institute, Vancouver, BC, Canada; Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada; Walimu, Kampala, Uganda.
4 Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap, Cambodia; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK.
5 Kenya Medical Research Institute Wellcome Trust Research Programme, Nairobi, Kenya; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK.