1 Division of Infectious Diseases, American University of Beirut Medical Center, Riad El Solh, PO Box 11‑0236, Beirut, 1107 2020, Lebanon.
2 Division of Hematology Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
3 Division of Infectious Diseases, American University of Beirut Medical Center, Riad El Solh, PO Box 11‑0236, Beirut, 1107 2020, Lebanon. sk11@aub.edu.lb.