1 Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Columbus Center, Baltimore, MD 21202, USA.
2 Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo 90139, Italy.
3 Department of Biomedicine, Neuroscience and Advances Diagnosis (BIND), Section of Human Anatomy, University of Palermo, Palermo 90127, Italy.