1. County Veterinary Inspectorate in Puławy, C.K. Norwida 17, 24-100 Puławy, Poland
2. National Veterinary Research Institute, 24-100 Puławy, Poland
3. Department of Veterinary Microbiology, Faculty of Veterinary Medicine, Institute of Preclinical Veterinary Sciences, University of Life Sciences, 20-033 Lublin, Poland
4. Pope John Paul II State School of Higher Education, Sidorska 95/97, 21-500 Biała Podlaska, Poland
5. Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138 Warsaw, Poland