1. Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
2. Department of Medical Sciences, Surgical and Advanced Technologies ‘GF Ingrassia’, University of Catania, I‑95123 Catania, Italy
3. Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece