1. Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
2. Current Address: Becton, Dickinson and Company (BD), BD Diagnostics, Franklin Lakes, NJ 07417, USA
3. Research Center for Prevention, Diagnosis and Treatment of Cancer (PreDiCT), University of Catania, Catania, Italy
4. Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
5. Department of Biomedical and Neuromotor Sciences, Università di Bologna, Bologna, Italy
6. Institute for Biomedical Research and Innovation, National Research Council (CNR), Palermo, Italy
7. Department of Health Promotion, Maternal and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy