1. Laboratory of Clinical Microbiology, Virology and Bioemergency, ASST Fatebenefratelli Sacco, University Hospital L. Sacco, 20157 Milan, Italy
2. CNR-SCITEC, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, via C. Golgi 19, 20133 Milan, Italy
3. Department of Chemistry, University of Milan, via C. Golgi 19, 20133 Milan, Italy