1. Department of Rheumatology, Hospital of Prato, Prato, Italy
2. Clinical Department, National Institute for Infectious Diseases L. Spallanzani-IRCCS, Rome, Italy
3. Translational Research Unit, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), IRCCS, Rome, Italy