Affiliation: | (1) Departments of Microbiology and Immunology, American University of Beirut, Beirut, Lebanon;(2) Otolaryngology, Neck and Head Surgery, American University of Beirut, Beirut, Lebanon;(3) Pathology and Laboratory Medicine, American University of Beirut, Beirut, Lebanon;(4) Internal Medicine Faculty of Medicine, American University of Beirut, Beirut, Lebanon |