Herbert DuPont currently serves as the Director, Center for Infectious Diseases and Professor of Epidemiology at the University of Texas School of Public Health and Chief, Internal Medicine Service at St. Luke's Episcopal Hospital. Additionally he is a professor at The Baylor College of Medicine H. Irving Schweppe, Jr., M.D., Chair in Internal Medicine and Vice Chairman, Department of Medicine; The Mary W. Kelsey Chair of Medical Sciences, The University of Texas-Houston Medical School; Professor of Medicine, Graduate Schools of Bio medical Sciences, The University of Texas and Baylor College of Medicine. Dr. DuPont also is Adjunct Professor at The University of Texas MD Anderson Cancer Center and President of the Kelsey Research Foundation.

Dr. DuPont has been active and held positions in numerous organisations, including the American Clinical and Climatological Association, American Epidemiological Society, American Society for Clinical Investigation, American Academy of Microbiology, America College of Physicians, Association of American Physicians, Infectious Diseases Society of America, National Foundation for Infectious Diseases, and the International Society of Travel Medicine. He has received many awards and honors.

Dr. DuPont has served on the Vaccines and Related Biological Products Advisory Committee and as Consultant to the U.S. Food and Drug Administration; Board of Scientific Counsellors, U.S. Centers for Disease Control and Prevention (CDC); NIH Blue Ribbon Panel on Bioterrorism and its Implications for Biomedical Research; Medical Advisory Steering Committee of the City of Houston Medical Strike Team for Biological, Chemical and Nuclear Terrorism; and the Board of Advisors, Emory University School of Medicine, 2001-2009.

Dr. DuPont has lectured widely in the field of travel medicine, has authored or co-authored 615 medical and scientific publications, and edited or written 19 books. Reference 11 in CV was the first description of the biologic properties of Norwalk virus published in 1971 and reprinted in the Journal of Infectious Diseases in 2004 as a Centennial Classic; reference 12 describing the pathogenesis of Escherichia coli diarrhea was deemed a Science Citation Classic in 1985 as one of the 100 most cited articles published in the New England Journal of Medicine. He serves on the Editorial Boards of the Infectious Diseases in Clinical Practice, Journal of Infectious Diseases, The Journal of Infection, and currently serves as the Deputy Editor-in-Chief of the Journal of Travel Medicine.

Lin H. Chen, MD, FACP, FASTMH, FISTM, is Immediate Past President of the International Society of Travel Medicine (2019-2021). She is Director of the Travel Medicine Center at Mount Auburn Hospital in Cambridge, Massachusetts, and Associate Professor of Medicine at Harvard Medical School.

Dr. Chen is a graduate of Harvard University and Jefferson Medical College of Thomas Jefferson University. She trained in Boston followed by Yale-New Haven Hospital before returning to the Boston area. She is a Fellow of the American College of Physicians, the American Society of Tropical Medicine and Hygiene (ASTMH), and International Society of Travel Medicine (ISTM).

At ISTM, she previously directed the Travel Medicine Review and Update Course, served on the Research Committee, was a Counsellor on the Executive Board as well as Associate Chair of Scientific Program Committee for ISTM Conferences. She served on the ASTMH Certificate Examination Committee and Education Committee and also on Work Groups of the CDC Advisory Committee on Immunization Practices.

Her editorial roles include the Journal of Travel Medicine, Current Infectious Disease Reports, Travel Medicine and Infectious Diseases, and Infectious Diseases: A Geographic Guide. She served on past scientific program committees of International Conference on Emerging Infectious Diseases. She is a site director for the GeoSentinel® Surveillance Network and Global Travel Epidemiology Network. Her clinical research highlight issues in travelers' health, including vector-borne diseases, immunizations, emerging infections, and cross-border healthcare.

Dr. Hamer is a board-certified specialist in infectious diseases with a particular interest in tropical infectious diseases and extensive field experience in maternal, neonatal, and child survival research including studies of health systems strengthening, neonatal sepsis, malaria, pneumonia, and diarrheal diseases. During the last 30 years, he has supervised and provided technical support to numerous studies in developing countries that evaluated interventions for improving neonatal survival, improving access for pregnant women to emergency obstetrical care, treatment and prevention of malaria, micronutrient deficiencies, diarrheal disease, and pneumonia. In addition, Dr. Hamer is the Surveillance Lead for the GeoSentinel Surveillance Network, a global network of 71 sites in 28 countries that conducts surveillance of emerging infectious diseases using returning travelers, immigrants, and refugees as sentinels of infection (www.istm.org/geosentinel). In this role, he has been collaborating with the Travelers’ Health Branch of the CDC on enhanced surveillance of the current monkeypox outbreak, COVID-19 surveillance, and important retrospective analyses of dengue in travelers.

At Boston University, Dr. Hamer has been involved in many COVID-19-related prevention, control, and research projects. As a faculty member in the National Emerging Infectious Diseases Laboratories and the Precision Diagnostics Center, he assisted with the COVID-19 mitigation strategies necessary for keeping the campus healthy and safe. Dr. Hamer also served as the director of the BU COVID-19 Surveillance and Response Team, and a member of the Medical Advisory Group to the president of Boston University, the Community Health Oversight Group, and the Vaccine Preparedness Group. Dr. Hamer has particular expertise in the epidemiology and diagnosis of SARS-CoV-2 as well as strategies for prevention of transmission, including vaccination.