1. Institute of Public Health, Kilimanjaro Christian Medical University College (KCMUCo), Moshi P.O. Box 2240, Tanzania
2. Department of Translational Medicine, Lund University, 214 28 Malmo, Sweden
3. Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WCIE 7HT, UK
4. Joint Malaria Program, Kilimanjaro Christian Medical Centre, Moshi P.O. Box 3010, Tanzania
5. President’s Office—Regional Administration and Local Government, Dodoma P.O. Box 1923, Tanzania
6. Immunization and Vaccine Development Program, Ministry of Health, Dodoma P.O. Box 743, Tanzania
7. School of Natural Science, The State University of Zanzibar, Tunguu P.O. Box 146, Tanzania
8. United Nations Children Fund (UNICEF), Dar es Salaam P.O. Box 4076, Tanzania
9. Community Health Department, KCMC Hospital, Moshi P.O. Box 3010, Tanzania