1. Section of Microbiology and Virology, University Hospital “Luigi Vanvitelli” of Naples, Naples, Italy
2. Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
3. Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
4. Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi (SA), Italy