1. Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention , Kisumu , Kenya
2. Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
3. Department of Clinical Sciences, Liverpool School of Tropical Medicine , Liverpool , United Kingdom
4. Centre for Global Health Research, Kenya Medical Research Institute , Kisumu , Kenya
5. Center for Malaria Control and Elimination, PATH , Seattle, Washington , USA
6. Department of Infectious Disease Epidemiology, Imperial College London , London , United Kingdom