From the Laboratories of Immunoregulation (A.L., P.Y., M.V.A., C.G., M.M., I.S.) and Clinical Immunology and Microbiology (A.P.H., K.D., L.D.N.), National Institute of Allergy and Infectious Diseases, the Experimental Transplantation and Immunotherapy Branch (D.D., S.N.H., J.A.K.) and the Laboratory of Cellular Oncology (G.J.S., C.B.), National Cancer Institute, the Translational and Functional Genomics Branch, National Human Genome Research Institute (D.M.P., J.A.S.), the Laboratory of Molecular Immunology and the Immunology Center, National Heart, Lung, and Blood Institute (A.F., W.J.L.), the Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases (H.H.K., I.B.), and the Center for Infectious Disease Imaging (D.A.H.), National Institutes of Health, and Walter Reed National Military Medical Center (M.I.O.) — all in Bethesda, MD; Vagelos College of Physicians and Surgeons, Columbia University, New York (E.M.M., J.S.O.); and the Department of Medicine and Department of Otolaryngology–Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago (A.T.P.).

Address reprint requests to Dr. Lisco at the Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 9000 Rockville Pike, Bldg. 10, Rm. 6D44G, Bethesda, MD 20892, or at [email protected].