[1] Univ Catania, Dept Clin & Expt Med, Unit Infect Dis, Catania, Italy
[2] Univ Messina, Dept Biomed & Dent Sci & Morpho Funct Imaging, Messina, Italy
[3] Univ Messina, Dept Clin & Expt Med, Unit Infect Dis, Messina, Italy
[4] Univ Messina, Dept Adult & Childhood Human Pathol Gaetano Barre, Messina, Italy