London School of Hygiene and Tropical Medicine, London, United Kingdom
Tropical Gastroenterology and Nutrition Group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
Walukuba Health Centre IV, Jinja, Eastern Region, Uganda
Various health facilities, Enugu, Enugu State, Nigeria
London School of Hygiene and Tropical Medicine, London, United Kingdom
Universite Chiekh Anta Diop, Dakar, Senegal
Department of Paediatrics and Child Health, University of Ilorin Teaching Hospital, Ilorin, Kwara, Nigeria
National Centre for Social Research, London, United Kingdom
University of Nairobi, Nairobi, Kenya
Centre de Recherche MΓ©dicale et Sanitaire, CERMES, Niamey, Niger
Center for Vaccine Development, Bamako, Mali