1. Department of Food Hygiene and Public Health Protection, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
2. Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232 Lodz, Poland
3. Department of Microbiology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland
4. Department of Microbiology, National Tuberculosis Reference Laboratory, National Tuberculosis and Lung Diseases Research Institute, Płocka 26, 01-138 Warsaw, Poland
5. Department of Morphological Sciences, Division of Histology and Embryology, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
6. Provincial Veterinary Inspectorate, Piotra Ścigiennego 6a, 38-400 Krosno, Poland