1. Molecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
2. Infectious and Tropical Diseases Unit, Istituti Ospitalieri di Cremona, Cremona, Italy.
3. Emergency and Acceptance Department, Istituti Ospitalieri di Cremona, Cremona, Italy.
4. Nephrology and Dialysis Unit, Istituti Ospitalieri di Cremona, Cremona, Italy.
5. Infectious Diseases Unit, Azienda Ospedaliera Carlo Poma, Mantua, Italy.
6. Institute of Infectious and Tropical Diseases, University of Brescia, Brescia, Italy.
7. Transplantation Unit, Nephrology, Spedali Civili of Brescia, Brescia, Italy.
8. Infectious Diseases Unit, Department of Surgical and Morphological Sciences, University of Insubria, Varese, Italy.
9. Laboratory of Virology, National Institute for Infectious Diseases “Lazzaro Spallanzani”, Roma, Italy.
10. Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ‘Bruno Ubertini, Brescia, Italy.
11. Regional Health Authority of Lombardy, Milan, Italy.