1. PhD student, Department of Microbiology, Faculty of veterinary medicine University of Belgrade, Bul. Oslobođenja 18, Belgrade, Serbia
2. Virology Department, Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, Serbia
3. Department of Microbiology, Faculty of veterinary medicine University of Belgrade, Bul. Oslobođenja 18, Belgrade, Serbia
4. Scientific Veterinary Institute of Serbia, Vojvode Toze 14, Belgrade, Serbia