1 Department of Clinical and Experimental Sciences, Unit of Infectious and Tropical Diseases, University of Brescia-ASST Spedali Civili, Brescia, Italy.
2 Unit of Infectious and Tropical Diseases, ASST Spedali Civili, Brescia, Italy.
3 Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia-ASST Spedali Civili, P. Le Spedali Civili, 1, 25123, Brescia, Italy.