1
Department of Children’s Infectious Diseases, Medical University of Warsaw, Poland
2
Regional Hospital for Infectious Diseases, Warsaw, Poland
3
Department of Infectious Diseases and Paediatric Neurology, Poznan University of Medical Sciences, Poznan, Poland
4
Department of Paediatrics, Paediatric Nephrology and Allergology, Military Institute of Medicine, Central Clinical Hospital of the Ministry of Defence (MON), Warsaw, Poland
5
Department of Paediatrics with Medical Assessment Unit, Medical University of Warsaw, Warsaw, Poland
6
Department of Paediatric Infectious Diseases, Medical University of Lodz, Lodz, Poland
7
Department of Infectious Diseases and Hepatology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland
8
Department of Paediatric Infectious Diseases, Medical University of Bialystok, Bialystok, Poland
9
2nd Department of Paediatrics, Centre of Postgraduate Medical Education, Warsaw, Poland
10
Department of Paediatric and Neonatal Diseases of the Central Clinical Hospital of the Ministry of the Interior and Administration, Warsaw, Poland
11
Department of Paediatrics and Infectious Diseases, Wroclaw Medical University, Wroclaw, Poland
12
Department of Preventive Medicine, Poznan University of Medical Sciences, Poznan, Poland
13
Department of Infectious Diseases, Specialized Health Care Center for Women and Children, Poznan, Poland
14
Department of Pediatrics, Pediatric Oncology and Immunology, Pomeranian Medical University, Szczecin, Poland
15
Department of Paediatrics, Centre of Postgraduate Medical Education, Warsaw, Poland
16
National Consultant in the Field of Paediatrics, Warsaw, Poland