1. Department of Microbiology, Immunology and Epidemiology , Cluj-Napoca , Romania
2. Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine , Cluj-Napoca , Romania
3. “Regele Mihai I al României” Life Science Institute, University of Agricultural Sciences and Veterinary Medicine , 400372 Cluj-Napoca , Romania
4. Department of Parasitology and Zoology, University of Veterinary Medicine , H-1078 Budapest , Hungary