1. Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University; Utrecht The Netherlands
2. Department of Molecular Virology, Immunology and Medical Genetics, Comprehensive Cancer Center, College of Medicine, The Ohio State University; Columbus OH USA
3. Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Centre Utrecht; Utrecht The Netherlands
4. Experimental Zoology Group, Wageningen University; Wageningen The Netherlands