[1] Univ Pretoria, Inst Sustainable Malaria Control UP ISMC, Sch Hlth Syst & Publ Hlth, Private Bag X363, ZA-0001 Pretoria, South Africa
[2] Columbia Univ, ICAP, Mailman Sch Publ Hlth, Pretoria, South Africa
[3] Univ Malawi, Coll Med, Sch Publ Hlth & Family Med, Blantyre, Malawi
[4] Human Sci Res Council, Populat Hlth Hlth Syst & Innovat, Pretoria, South Africa
[5] Int Ctr Insect Physiol & Ecol, POB 30772, Nairobi, Kenya