1. WHO Collaborating Centre for Antimicrobial Resistance in Food borne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, Copenhagen, Denmark.
2. Central Veterinary Institute of Wageningen UR (CVI), Lelystad, The Netherlands.
3. Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.