1 Infectious Diseases Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, StopTB Italia, Milan.
2 Microbiology Department of Clinical and Experimental Medicine, University of Pisa, Pisa.
3 Infectious Diseases Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa.
4 Emerging Bacterial Pathogens Unit, Division of Immunology, Transplantation, and Infectious Diseases, Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele, Milan, Italy.