1. Department of Infectious–Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy.
2. Hospital Direction, AULSS6 Euganea Ospedali Riuniti Padova Sud, Monselice, Italy.
3. School of Medicine, University of Trieste, Trieste, Italy.
4. Department of Biology, University of Rome “Tor Vergata,” Rome, Italy.
5. Infectious Diseases Department, Azienda Sanitaria Universitaria Integrata di Trieste, Trieste, Italy.