1. Faculty of Biology and Environmental Protection, Department of Microbiology, University of Silesia Katowice Poland
2. Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences Lodz Poland
3. Department of Rheumatology, St Louis Voivodeship Specialist Children's Hospital Cracow Poland
4. Department of Paediatrics, Immunology and Nephrology, Polish Mother's Memorial Hospital Research Institute Lodz Poland
5. Department of Applied Biochemistry, Tokai University Hiratsuka‐shi Kanagawa Japan
6. Department of Nutrition in Digestive Tract Diseases, Medical University of Lodz Lodz Poland
7. Research Programs Unit, Department of Bacteriology and Immunology, Medicum, Immunobiology, University of Helsinki Helsinki Finland
8. Helsinki University Central Hospital Laboratory Diagnostics Helsinki Finland