(1977) and M.D. (magna cum laude) from Harvard Medical School (1982), completed his clinical training in internal medicine and infectious diseases at Massachusetts General Hospital, served as a postdoctoral fellow in microbiology at Stanford University, and joined the faculty at Stanford in 1994. Dr. Relman’s current research focus is the human indigenous microbiota (microbiome), and in particular the nature and mechanisms of variation in patterns of microbial diversity in the human body as a function of time (microbial succession) and space (biogeography within the host landscape) and in response to perturbation, e.g., antibiotics (community robustness and resilience). One of the goals of this work is to define the role of the human microbiome in health and disease. This research integrates theory and methods from ecology, population biology, environmental microbiology, genomics, and clinical medicine. During the past few decades, his research directions have also included pathogen discovery and the development of new strategies for identifying previously unrecognized microbial agents of disease. This work helped to spearhead the application of molecular methods to the diagnosis of infectious diseases in the 1990s. His research has emphasized the use of genomic approaches for exploring host-microbe relationships. Past scientific achievements include the description of a novel approach for identifying previously unknown pathogens, the identification of a number of new human microbial pathogens, including the agent of Whipple’s disease, and some of the most extensive and revealing analyses to date of the human indigenous microbial ecosystem. Dr. Relman advises the U.S. government as well as nongovernmental organizations in matters pertaining to microbiology, emerging infectious diseases, and biosecurity. He currently serves as Chair of the Institute of Medicine’s Forum on Microbial Threats (National Academy of Sciences), a member of the National Science Advisory Board for Biosecurity (NSABB), and a member of the Physical and Life Sciences Directorate Review Committee for Lawrence Livermore National Laboratory, and advises several U.S. government departments and agencies on matters related to pathogen diversity, the future life sciences landscape, and the nature of present and future biological threats. He has served as Chair of the Board of Scientific Counselors of the National Institute of Dental and Craniofacial Research (National Institutes of Health [NIH]) and member of the Board of Directors, Infectious Diseases Society of America (IDSA). Dr. Relman cochaired a three-year National Research Council study that produced a widely cited report entitled Globalization, Biosecurity, and the Future of the Life Sciences (2006). He is a Fellow of the American Academy of Microbiology and a member of the Association of American Physicians. Dr. Relman received the Squibb Award from the IDSA in 2001 and was the recipient of both the NIH Director’s Pioneer Award and the Distinguished Clinical Scientist Award from the Doris Duke Charitable Foundation in 2006.
Arturo Casadevall is the Leo and Julia Forchheimer Professor of Microbiology and Immunology and Chair of the Department of Microbiology and Immunol-