1. 1School of Medicine, University of Zagreb, Croatia
2. 2University Hospital Center Zagreb, Croatia
3. 3Croatian Institute of Transfusion Medicine (CITM), Croatia
4. 4University Hospital Center Split, Croatia
5. 5Public Health Institute of Istria County, Pula, Croatia
6. 6Public Health Institute of Osijek-Baranja County, Osijek, Croatia
7. 7School of Medicine, University of Osijek, University Hospital Center Osijek, Croatia
8. 8University of Rijeka, Rijeka, Croatia
9. 9Public Health Institute Slavonski Brod, Croatia
10. 10Department for Microbiology, General Hospital Karlovac, Croatia
11. 11Children’s Hospital Zagreb, Croatia
12. 12Institute for Microbiology, Hygiene and Environmental Medicine, Medical University of Graz, Austria
13. 13University Hospital for Infectious Diseases, Zagreb, Croatia
14. 14AIT, Austrian Institute for Technology, Vienna, Austria