1. Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
2. ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
3. Instituto Nacional de Saúde, Ministério da Saúde, Maputo, Mozambique
4. Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
5. Maternal, Adolescent, Reproductive and Child Health Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom
6. Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
7. Pediatrics Department, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
8. Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública, Madrid, Spain