1. Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy
2. Department of Life Sciences, University of Siena, 53100 Siena, Italy
3. Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
4. Microbiology and Virology Unit, Careggi University Hospital, 50134 Florence, Italy
5. Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
6. Laboratory of Clinical Pathology, Santa Maria alle Scotte University Hospital, 53100 Siena, Italy
7. Setlance srl, Via Fiorentina 1, 53100 Siena, Italy