1. Department of Microbiology, Croatian Institute of Public Health, 10000 Zagreb, Croatia
2. Department of Microbiology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
3. Department of Communicable Diseases Epidemiology, Croatian Institute of Public Health, 10000 Zagreb, Croatia
4. Veterinary and Food Safety Directorate, Ministry of Agriculture, 10000 Zagreb, Croatia
5. Public Health Institute of Sisak-Moslavina County, Kralja Tomislava 1, 44000 Sisak, Croatia