1. Department of Ecology and Diseases of Zoo Animals, Game, Fish and Bees, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
2. Institute of Vertebrate Biology of the Czech Academy of Sciences, Květná 8, 603 65 Brno, Czech Republic
3. Public Health Institute Ostrava, Partyzánské Nám. 7, 702 00 Ostrava, Czech Republic
4. Faculty of Regional Development and International Studies, Mendel University in Brno, tř. Generála Píky 7, 613 00 Brno, Czech Republic