1. Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Catania, ARNAS Garibaldi Hospital, 95122 Catania, Italy
2. Section of Pediatrics and Child Neuropsychiatry, School of Specialization in Pediatrics, Department of Clinical and Experimental Medicine, University of Catania, 95124 Catania, Italy
3. Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy
4. Department of Medicine and Surgery, University of Enna “Kore”, 94100 Enna, Italy
5. Department of Anesthesia and Intensive Care, University Hospital Policlinico—San Marco, 24046 Catania, Italy
6. Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95125 Catania, Italy
7. Department of Clinical and Experimental Medicine, Section of Pediatrics and Child Neuropsychiatry, University Hospital “Policlinico G. Rodolico”, 95125 Catania, Italy