1. Department of Infectious Diseases, National Institute of Health, Rome, Italy
2. Istituto Zooprofilattico Sperimentale Abruzzo e Molise, Teramo, Italy
3. Directorate of Prevention, Food Safety, and Veterinary Public Health, Veneto Region, Venice, Italy
4. Directorate of Prevention, Food Safety, and Veterinary Public Health, Emilia-Romagna Region, Bologna, Italy
5. Istituto Zooprofilattico Sperimentale Lombardia ed Emilia-Romagna, Sezione di Reggio Emilia, Italy
6. Bambino Gesù Children's Hospital, Rome, Italy
7. Italian National Blood Centre, National Institute of Health, Rome, Italy
8. Italian National Transplant Centre, National Institute of Health, Rome, Italy
9. Italian Ministry of Health, Rome, Italy