1. Department of Life, Health, and Environmental Sciences, University of L’Aquila, Piazzale Salvatore Tommasi 1, 67100 L’Aquila, Italy
2. Department of Biochemical Sciences “A. Rossi Fanelli”, University of Roma “Sapienza”, Piazzale Aldo Moro 5, 00185 Roma, Italy
3. Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, Illinois 60612, United States