1. Institute for Laboratory Diagnostics ‘Konzilijum’, Belgrade, 11000, Serbia
2. Department of Microbiology & Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, 11000, Serbia
3. City Institute of Public Health of Belgrade, Belgrade, 11000, Serbia
4. Institute of Microbiology & Immunology, Faculty of Medicine, University of Belgrade, Belgrade, 11000, Serbia