1. Department of Equine, Small Animal, Poultry and Wild Animal Diseases, Faculty of Veterinary Medicine , University of Belgrade , Bul. Oslobodjenja 18 , Belgrade , Serbia
2. Department of Pathology, Faculty of Veterinary Medicine , University of Belgrade , Bul. Oslobodjenja 18 , Belgrade , Serbia
3. Department of Biology, Faculty of Veterinary Medicine , University of Belgrade , Bul. Oslobodjenja 18 , Belgrade , Serbia
4. Department of Parasitology, Faculty of Veterinary Medicine , University of Belgrade , Bul. Oslobodjenja 18 , Belgrade , Serbia