1. Molecular Virology Unit, Microbiology and Virology Department, IRCCS Policlinico San Matteo, Pavia, Italy
2. Immunohematology and Transfusion Medicine Unit, Ospedale Maggiore di Lodi, Lodi, Italy
3. Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
4. SIMT, Centro Lavorazione e Validazione, IRCCS Policlinico San Matteo, Pavia, Italy
5. ICU1 Department of Intensive Medicine, IRCCS Policlinico San Matteo, Pavia, Italy
6. Infectious Diseases I, Department of Medical Sciences and Infectious Diseases, IRCCS Policlinico San Matteo, Pavia, Italy
7. Lombardy Region, Directorate General for Health, UO Prevenzione, Milan, Italy
8. Health Protection Agency of Pavia, Department of Hygiene and Preventive Medicine, Pavia, Italy
9. Chief Executive Office, IRCCS Policlinico San Matteo, Pavia, Italy
10. Chief Executive Office, ASST Lodi, Lodi, Italy