Hellen .K. Matakala*, Nobutu Muttau, Kwadwo Baning, Mutale Chonta, Nkatya Kasese, Emma Gyamera, Linda Mlunde, William Osafo-Mahama3, Phillimon Ndubani, Musonda Simwinga, Jessie Mbwambo, Bonny Betson, Laura Nyblade, Virginia Bond, Sarah T. Roberts
Macha Research Trust, Zambia, Zambart, Zambia, Education Assessment and Research Centre (EARC), Ghana, Muhimbili University of Health and Allied Sciences, Tanzania, Muhimbili University College of Health and Allied Services, Tanzania, Research Triangle International, USA, London School of Hygiene and Tropical Medicine, United Kingdom