Authors
Kinga Zaręba-Marchewka
Department of Cattle and Sheep Diseases, Puławy, Poland
Monika Szymańska-Czerwińska
Department of Cattle and Sheep Diseases, Puławy, Poland
Laboratory of Serological Diagnosis, National Veterinary Research Institute, Puławy, Poland
Krzysztof Niemczuk
Department of Cattle and Sheep Diseases, Puławy, Poland
Laboratory of Serological Diagnosis, National Veterinary Research Institute, Puławy, Poland