Global Health Impact Group, Institut Pasteur de Dakar - DIATROPIX Unit, Instituto Pedro Kouri, Institute Pasteur du Laos, Institute Pasteur du Cambodge, Institut Pasteur de Madagascar, Institut Pasteur du Laos, Instituto Pedro Kouri, National Institute for Quality Control in Health, London School of Hygiene & Tropical Medicine - Department of Disease Control, Universidad del Norte, Universidad del Norte, Instituto Pedro Kouri, UNICEF - Supply Division, Institut Pasteur de Dakar and London School of Hygiene & Tropical Medicine - Department of Clinical Research