1. Laboratory of Clinical Microbiology, Virology and Bioemergencies, ASST Fatebenefratelli Sacco – University of Milan, Milan, Italy
2. Department of Infectious Diseases, ASST Fatebenefratelli Sacco, Milan, Italy
3. Scientific Department Army Medical Center, Rome, Italy
4. L. Sacco Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy