1. Institute of Biometry, Epidemiology and Information Processing (IBEI), WHO-CC for Health at the Human-Animal-Environment Interface, University of Veterinary Medicine, Foundation, Hannover, Bünteweg 2, 30559 Hannover, Germany
2. Field Station for Epidemiology, University of Veterinary Medicine, Foundation, Hannover, Büscheler Str. 9, 49456 Bakum, Germany
3. Institute for Animal Hygiene, Animal Welfare and Farm Animal Behavior, University of Veterinary Medicine, Foundation, Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
4. Centre for E-Learning, Didactics, Educational Research [ZELDA], University of Veterinary Medicine, Foundation, Hannover, Bünteweg 2, 30559 Hannover, Germany
5. ISN-Projekt GmbH, Kirchplatz 2, 49401 Damme, Germany
6. Clinic for Swine, Small Ruminants, Forensic Medicine and Ambulatory Service, University of Veterinary Medicine, Foundation, Bischofsholer Damm 15, 30173 Hannover, Germany