1. Department of Biomedical and Clinical Sciences, Romeo and Enrica Invernizzi Pediatric Clinical Research Center, Università Di Milano, Milan, Italy
2. Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
3. Microbiology Institute, ASST Papa Giovanni XXIII, Bergamo, Italy
4. Microbiology and Virology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
5. Emerging Bacterial Pathogens Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
6. Laboratory Microbiology and Virology, Ospedale San Raffaele Dibit, Milan, Italy
7. Laboratory of Microbiology, ASST Monza, San Gerardo Hospital, Monza, Italy
8. Department of Pediatrics, Children’s Hospital Vittore Buzzi, Università Di Milano, Milan, Italy