Department of Virology,
National Veterinary Research Institute
Pulawy, Poland
Jerzy Rola
Department of Virology,
National Veterinary Research Institute
Pulawy, Poland
Dariusz Bednarek
Department of Cattle and Sheep Diseases,
National Veterinary Research Institute
Pulawy, Poland
Renata Urban-Chmiel
Sub-department of Veterinary Preventive, Institute of Biological Bases of Animal Diseases, Faculty of Veterinary Medicine
University of Life SciencesLublin, Poland
Jan F. Żmudziński
Department of Virology,
National Veterinary Research Institute
Pulawy, Poland