1. Institute for Microbiology and Immunology, Medical Faculty, University of Ljubljana, Zaloška 4, 1105 Ljubljana, Slovenia
2. Institute for Microbiology and Immunology,Medical Faculty, University of Maribor, Maribor, Slovenia
3. Institute for Microbiology and Immunology, Medical Faculty, University of Ljubljana, Chengdujska, Ljubljana, Slovenia
4. Institute for Microbiology and Immunology, Medical Faculty, Trg Sv. Ivana 5, Kloštar Ivanić, Croatia
5. Institute for Microbiology and Immunology, Medical Faculty, Medex d.o.o.3, Ljubljana, Slovenia