Authors
Petar T. Iliev
Department of Veterinary Microbiology, Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
Georgi Zh. Georgiev
Department of Veterinary Microbiology, Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
Zvezdelina T. Kirkova
Department of Veterinary Microbiology, Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
Borislava G. Chakarova
Department of Hygiene, Epidemiology, Infectious and Parasitic Diseases, Faculty of Medicine, Trakia University, Stara Zagora, Bulgaria