1. ISGlobal Hospital Clínic - Universitat de Barcelona, Barcelona, Spain E-mail: sara.ajanovic@isglobal.org
2. Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
3. ICREA, Barcelona 08010, Spain
4. Pediatric Infectious Diseases Unit, Pediatrics Department, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
5. Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain