1. Institute of Public Health, Kilimanjaro Christian Medical University College, Moshi, Tanzania
2. Faculty of epidemiology and population health, London School of Hygiene and Tropical Medicine, London, UK
3. Department of Translational Medicine, Lund University, Malmo, Sweden
4. Internal Medicine Department, Faculty of Medicine, Kilimanjaro Christian Medical University College, Moshi, Tanzania
5. Joint Malaria Program, Kilimanjaro Christian Medical Centre, Moshi, Tanzania
6. Department of community health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
7. Department of Public Health, St. Francis University College of Health and Allied Sciences, Morogoro, Tanzania
8. Department of health, President’s Office - Regional Administration and Local Government, Dodoma, Tanzania
9. Ministry of Health, Immunization and Vaccine Development Department, Dodoma, Tanzania
10. Department of Health, African Medical and Research Foundation, Dar-es-salaam, Tanzania
11. School of Natural Science, The State University of Zanzibar, Zanzibar, Tanzania
12. Department of Health, UNICEF, Tanzania Office, Dar-es-salaam, Tanzania
13. Community Health Department, Kilimanjaro Christian Medical Centre, Moshi, Tanzania