1. Department of Animal Science, Albert Kázmér Faculty of Mosonmagyaróvár, Wittmann Antal Multidisciplinary Doctoral School, Széchenyi István University, H-9200 Mosonmagyaróvár, Hungary
2. Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK
3. Institute of Medical Microbiology, Semmelweis University, H-1089 Budapest, Hungary
4. Nexum Veterinary Medicine and Service Ltd., H-2440 Százhalombatta, Hungary