Authors
Wojciech Kozdruń
Department of Poultry Viral Diseases, National Veterinary Research Institute, Pulawy, Poland
Grzegorz Woźniakowski
Department of Poultry Viral Diseases, National Veterinary Research Institute, Pulawy, Poland
Hanna Czekaj
Department of Poultry Viral Diseases, National Veterinary Research Institute, Pulawy, Poland
Wojciech Kozaczyński
Department of Pathology, National Veterinary Research Institute, Pulawy, Poland
Elżbieta Samorek–Salamonowicz
Department of Poultry Viral Diseases, National Veterinary Research Institute, Pulawy, Poland