1. Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
2. Quality Department, Medicines Evaluation Board, Utrecht, The Netherlands
3. Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
4. Intravacc (Institute for Translational Vaccinology), Bilthoven, The Netherlands
5. Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
6. Cell Biology and Immunology Group, Department of Animal Sciences, Wageningen University and Research, Wageningen, The Netherlands