1. Department of Virology, University of Tampere, Finland
2. JDRF Centre for Prevention of Type 1 Diabetes in Finland
3. Department of Paediatrics, University of Petrozavodsk, Russia
4. Department of Clinical Microbiology, Centre for Laboratory Medicine, Pirkanmaa Hospital District, Tampere, Finland
5. Centre for General Practice, Pirkanmaa Hospital District, Tampere, Finland
6. Paediatric Research Centre University of Tampere, Finland
7. Department of Microbiology and Immunology, University of Tampere, Finland
8. Department of Immunology, University of Tartu, Estonia
9. Hospital for Children and Adolescents, University of Helsinki, Finland
10. Department of Paediatrics, Tampere University Hospital, Finland