1. Pediatric Surgery and Airway Team UnitScientific Institute for Research, Hospitalization, and Health Care, Istituto Giannina Gaslini Genoa Italy
2. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child ScienceUniversity of Genoa Genoa Italy
3. Infectious Diseases UnitScientific Institute for Research, Hospitalization, and Health Care, Istituto Giannina Gaslini Genoa Italy
4. Infectious Diseases Unit, Department of Health SciencesUniversity of Genoa Genoa Italy
5. Epidemiology and Biostatistics UnitScientific Institute for Research, Hospitalization, and Health Care, Istituto Giannina Gaslini Genoa Italy
6. Anesthesia and Neonatal and Pediatric Intensive Care UnitScientific Institute for Research, Hospitalization, and Health Care, Istituto Giannina Gaslini Genoa Italy
7. Laboratory of MicrobiologyScientific Institute for Research, Hospitalization, and Health Care, Istituto Giannina Gaslini Genoa Italy