1. Research Center for Vitamins & Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark;
2. Projécto de Saúde Bandim, INDEPTH Network, Bissau, Guinea-Bissau;
3. Department of Immunology and Vaccinology, National Veterinary Institute, Technical University of Denmark, Frederiksberg and
4. Odense Patient Data Explorative Network, Institute of Clinical Research, University of Southern Denmark/Odense University Hospital, Denmark