1. Barbara Davis Center for Childhood Diabetes (P.A.G., A.K.A., A.W.M., D.Z.)
2. Department of Clinical Biochemistry and Pharmacology (E.C.L.), Faculty of Health Sciences, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
3. Department of Medicine (L.S.), Division of Infectious Diseases, Veterans Affairs Medical Center and University of Colorado Denver, Denver, Colorado 80202
4. Division of Infectious Diseases (C.A.D.), University of Colorado Denver, Aurora, Colorado 80045