JOSHUA LEDERBERG (Co-chair),* University Professor and Sackler Foundation Scholar,

Rockefeller University, New York, New York

ROBERT E. SHOPE (Co-chair), Professor of Epidemiology and Director,

Yale Arbovirus Research Unit, Yale University School of Medicine, New Haven, Connecticut

BARRY R. BLOOM,* Weinstock Professor and Chairman,

Department of Microbiology and Immunology, and

Investigator,

Howard Hughes Medical Institute, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York

ROBERT L. BUCHANAN, Research Leader,

Microbial Food Safety Research Unit, Agricultural Research Service, Eastern Regional Research Center, U.S. Department of Agriculture, Philadelphia, Pennsylvania

JOHN R. DAVID,† Richard Pearson Strong Professor and Chairman,

Department of Tropical Public Health, Harvard School of Public Health, and

Professor of Medicine,

Harvard Medical School, Boston, Massachusetts

CIRO A. DE QUADROS, Regional Advisor,

Expanded Programme on Immunization, Pan American Health Organization, Washington, D.C.

PATRICIA N. FULTZ, Associate Professor,

Department of Microbiology, University of Alabama, Birmingham

JOHN J. HOLLAND, Professor,

Department of Biology and Institute for Molecular Biology, University of California, San Diego, La Jolla, California

DEAN T. JAMISON, Professor,

Department of Community Health Sciences and Department of Education, University of California, Los Angeles

EDWIN D. KILBOURNE,§ Distinguished Service Professor,

Department of Microbiology, Mount Sinai School of Medicine, New York, New York

ADEL A. F. MAHMOUD,† John H. Hord Professor of Medicine and Chairman,

Department of Medicine, Case Western Reserve University, University Hospitals of Cleveland, Cleveland, Ohio

GERALD L. MANDELL, Professor of Medicine, Owen R. Cheatham Professor of Sciences, and Head,

Division of Infectious Diseases, Department of Internal Medicine, University of Virginia, Charlottesville

STEPHEN S. MORSE, Assistant Professor,

Rockefeller University, New York, New York

JUNE E. OSBORN,† Dean and Professor of Epidemiology,

School of Public Health, and

Professor of Pediatrics and Communicable Disease,

Medical School, University of Michigan, Ann Arbor

WILLIAM C. REEVES, Professor Emeritus of Epidemiology,

School of Public Health, University of California, Berkeley