1. These authors contributed equally to the work and share first authorship
2. National Institute for Infectious Diseases (INMI) “L. Spallanzani”, Rome, Italy
3. Regional Reference Centre for Microbiological Emergencies (CRREM), Unit of Clinical Microbiology, St Orsola University Hospital, University of Bologna, Bologna, Italy
4. Department of Infectious Diseases, University of Insubria, Varese, Italy
5. National Transplant Centre, Rome, Italy
6. Members are listed at the end of the article