1 Department of Pediatrics and Public Health, Regina Margherita Children's Hospital, Turin, Italy.
2 Infectious disease unit, Department of Pediatrics, Regina Margherita Children's Hospital, Turin, Italy; Department of Pediatric Emergency, Regina Margherita Children's Hospital, Turin, Italy. Electronic address: [email protected].
3 Department of Pediatrics, Martini Hospital, Turin, Italy.
4 Pediatric neurology unit, Department of Pediatrics, Regina Margherita Pediatric Children's, Turin, Italy.
5 Infectious disease unit, Department of Pediatrics, Regina Margherita Children's Hospital, Turin, Italy.
6 Pediatric Otorhinolaryngology, Department of Pediatrics, Regina Margherita Children's Hospital, Turin, Italy.
7 Department of Pediatric Emergency, Regina Margherita Children's Hospital, Turin, Italy.