1. Department of Infection Biology, Wageningen Bioveterinary Research (WBVR), Lelystad, The Netherlands
2. Unit of Microbiology and Immunology, Faculty of Veterinary, University of Zaragoza, Zaragoza, Spain
3. Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
4. Section Pediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud, Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands