1 Staff Physician, Infectious Diseases, MedStar Washington Hospital Center, Washington, DC, USA.
2 Section Chief, Infectious Diseases, and Program Director, Infectious Diseases Fellowship, MedStar Washington Hospital Center, Washington, DC, USA. E-mail: glenn.w.wortmann@medstar.net.
3 Professor of Clinical Medicine (Infectious Diseases), Georgetown University, Washington, DC, USA.
4 Professor of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.