1. Veterinary Medical Research Institute, Eötvös Loránd Research Network, Budapest, Hungary
2. Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, UK
3. Istituto Zooprofilattico Sperimentale delle Venezie, Buttapietra, Italy
4. Department of Avian Diseases, Kimron Veterinary Institute, Beit Dagan, Israel
5. Department of Animal Hygiene, Herd Health and Mobile Clinic, Universitiy of Veterinary Medicine Budapest, Budapest, Hungary
6. Poultry-Care Kft., Újszász, Hungary
7. MolliScience Kft., Biatorbágy, Hungary