1. 1Department of Microbiology, “Aghia Sophia” Children’s Hospital, Athens, Greece
2. 2Department of Microbiology, “P. & A. Aglaia Kyriakou” Children’s Hospital, Athens, Greece
3. 3Second Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Greece
4. 4First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
5. 5National Staphylococcal Reference Laboratory, Department of Microbiology, School of Medicine, University of Patras, Greece
6. 6Department of Microbiology, National and Kapodistrian University of Athens, Greece