International Society of Travel Medicine
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Past President's Gallery

Herbert L. DuPont, United States of America, 1991 – 1993

Herbert DuPont 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 Counselors, 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.

Robert Steffen, Switzerland, 1993 – 1995

Robert Steffen Robert Steffen, Emeritus Professor, is currently concentrating on research projects at the University of Zurich Centre for Travel Medicine, where until 2008 he was the Head of the Division of Epidemiology and Prevention of Communicable Diseases in the Institute of Social and Preventive Medicine and Director of a World Health Organization Collaborating Centre for Traveller's Health. Further, he is Adjunct Professor in the Epidemiology and Disease Prevention Division of the University of Texas School of Public Health in Houston, TX and Honorary Fellow of the Australasian College of Tropical Medicine.

Dr. Steffen began systematically investigating illness and accidents in travellers in 1975. He organised the First International Conference on Travel Medicine in Zurich 1988 and became a co-founder and President of the International Society of Travel Medicine. He is the Editor-in-Chief of the Journal of Travel Medicine and has published more than 350 papers, book chapters, monographs - mainly in the field of travel health. For 12 years each, Dr. Steffen presided over the Swiss Influenza Pandemic Planning Committee and the Expert Committee for Travel Medicine; he was Vice-President of the Federal Commission on Vaccination and of the Swiss Bioterrorism Committee.

Dr. Steffen has held a number of critical roles in ISTM since its inception. He has served as President-Elect, President and Past-President, as well as chairing the Exam and Liaison Committees.

Jay Keystone, Canada, 1995 – 1997

Jay Keystone Jay S. Keystone, MD, MSc FRCPC , is a professor of medicine, Department of Medicine, a senior staff physician in the Tropical Disease Unit , Toronto General Hospital and the director of Medisys Travel and adult Immunization Clinic, Toronto.

Dr. Keystone received his medical degree from the University of Toronto where he was awarded the Cody gold medal (1964-1969). He completed his internship at Toronto General Hospital and his residency at Sunnybrook Hospital, Toronto, as well as the University of Michigan Medical Center, Ann Arbor. He later completed postgraduate work, receiving his Master's degree in clinical tropical medicine at the London School of Hygiene and Tropical Medicine. He carried out field work in subsaharan Africa and South America before returning to Toronto to become the Director of the Tropical Disease Unit at Toronto General Hospital in 1997. While on sabbatical in 1985, he was designated as an official Government of India leprosy control officer.

Dr. Keystone has received numerous honors and has held medical society positions worldwide. In 2008, he received the Ben Kean Medal from the American Society of Tropical Medicine for his longstanding contributions to medical education and mentorship. In the same year, he was the recipient of 5.3 million stem cells from his twin brother Ed, for the management of B cell lymphoma. He is the past president of the International Society of Travel Medicine, the clinical division of the American Society of Tropical Medicine, and the Canadian Society of International Health. He has served on editorial boards of Canadian and American journals, and he has been published in many distinguished and some not-so-distinguished international journals. Dr. Keystone is a renowned lecturer in the fields of travel and tropical medicine . He has received numerous teaching awards for his presentation skills including the Faculty of Medicine's Colin Woolf award for excellence in continuing medical education. It is worth noting that he has spoken on several different continents and has been incontinent.

His research interests are in leprosy, travellers' diarrhea, delusional parasitosis and travellers' health. Most of his field research was done in South India.

His claim to fame is being the first and last attending physician to make rounds at the Toronto General Hospital on rollerblades.

Michel Rey, France, 1997 – 1999

Information not available at this time.

Charles D. Ericsson, United States of America, 1999 – 2001

Charles Erricsson Dr. Ericsson graduated from Harvard Medical School in 1970. He did his medicine residency at the University of Minnesota Hospitals and served two years in the US Air Force. He did his fellowship in infectious diseases with Herbert L. DuPont at the University of Texas Medical School at Houston, where he remained on the faculty to this day. Dr. Ericsson has heavy clinical infectious diseases consultative and teaching duties. He has received several awards for his teaching and is presently the Director of the Infectious Diseases Fellowship Training Program at University of Texas Medical School at Houston. In addition, he is director of the University of Texas Travel Medicine Clinic. He is also currently involved in hospital infection control and antibiotic restriction programs. His research interests include travellers' diarrhea and travel medicine. He has journeyed each summer to Guadalajara Mexico to conduct clinical trials in travellers' diarrhea since 1975.

Dr. Ericsson is a Fellow of the American College of Physicians and the Infectious Diseases Society of America. He is a member of the American Society for Microbiology and the American Society of Tropical Medicine and Hygiene. Dr. Ericsson is a manuscript reviewer for more than 10 journals; founding editor of the Journal of Travel Medicine; and past Editor of the Travel Medicine Section, Clinical Infectious Diseases, 2000-2009.

A member since the Atlanta meeting, Dr. Ericsson served on the ITSM Scientific Planning Committee for the ISTM meetings in Paris, France. He also was a member of the ISTM Long Range Planning, the Examinations and the Publications Committees and was the Founding Editor-in-Chief of the Journal of Travel Medicine. Dr. Ericsson served as President of ISTM from 1999 through 2001.

Louis Loutan, Switzerland, 2001 – 2003

Louis Loutan Louis Loutan, MD, MPH is the head of the Division of International and Humanitarian Medicine in the Department of Community Medicine and Primary Care at the Geneva University Hospitals in Geneva, Switzerland. He is also Associate Professor in International and Humanitarian Medicine at the University of Geneva. Dr. Loutan is a specialist in internal medicine and tropical medicine and has a Master's in Public Health.

Dr. Loutan spent five years in the Republic of Niger conducting clinical work, epidemiological surveys in nutrition and tropical medicine, and organising programs in community health for nomadic populations. He spent two years in the Department of Community Health at Tufts University School of Medicine (Boston) organising training courses in international health. He has conducted research projects on leishmaniasis, and the impact of snakebites in Nepal. Dr. Loutan has served as senior consultant in tropical medicine at the Geneva University Hospitals and as Medical Director of the HUG laboratory of parasitology. He also served as technical advisor and co-director of the consortium managing SDC funded projects, continuing medical education programs in family medicine, and the Family Medicine Implementation Project in Bosnia.

Dr. Loutan has been the head of the Geneva travel medicine clinic since 1989 and has conducted research in various aspects of travel medicine including immunogenicity and tolerance of hepatitis A and B vaccines, vaccine combinations, security, and humanitarian expatriates. Since 1991 he served as head of the Unit offering various services for migrant and refugee populations in Geneva (medical screening, prevention programs, clinical care, care for survivors of violence, and interpreter services), as well as conducting research and providing training in this field.

His appointments include president of the Swiss Society of Tropical Medicine and Parasitology; president of the International Society of Travel Medicine; former board member of the Federation of European Societies for Tropical Medicine and International Health; chair of the organising committee of the 5th international Conference on Travel Medicine (Geneva 1997); president of the HUG Committee of humanitarian and international cooperation activities; and president of the organizing committee of the Geneva Forum: towards Global Access to Health, Geneva in 2006 and 2008.

Bradley A. Connor, United States of America, 2003 – 2005

Bradley A. Connor Bradley A. Connor, M.D. is a Clinical Professor of Medicine at the Weill Medical College of Cornell University and Attending Physician at the New York Presbyterian Hospital. He is founder and Medical Director of Travel Health Services, New York's first private travel medicine clinic. Dr. Connor is also the director of the New York Center for Travel and Tropical Medicine, a facility devoted to teaching and research in travel and tropical medicine. Dr. Connor has been in the private practice of Gastroenterology and Tropical Medicine for the past 30 years.

His main research interests include chronic gastrointestinal disorders in returned travellers, emerging gastrointestinal pathogens, and enteric parasitic diseases. He was part of the Kathmandu, Nepal team that first described the clinical illness associated with Cyclospora infections and made subsequent contributions to the understanding of its pathogenesis, epidemiology, and treatment. Widely published in these fields, he is co-editor of the textbook Travel Medicine, now in its 3rd edition.

Dr. Connor was the Co-Chair of the ISTM Foundation and CDC sponsored Travellers' Diarrhea Consensus Conference, held in April 2016. New guidelines for the diagnosis and management of Travellers' Diarrhea were developed during this conference and the proceedings will be published in early 2017.

This was the first international Consensus Conference on this subject in over a decade and was prompted by the availability of new culture independent diagnostics such as Film Array and the growing awareness of the potential for acquisition of multi drug resistant bacteria as a result of travel and the use of antibiotics. Dr. Connor has been the author of the sections on Travellers'™ Diarrhea and Persistent Diarrhea in the CDC Health Information for International Travel "Yellow Book" for the past six years. In his clinical practice Dr. Connor was an early adopter of the BioFire FilmArray GI panel, the first physician in private practice in New York to utilize this new diagnostic technology as early as April 2014 and has now accumulated over two and a half years worth of data on diarrhea in returned travellers as well as community acquired cases.

Dr. Connor is Past President of the International Society of Travel Medicine (ISTM) an organisation of over 3000 physicians and allied health professionals in over 75 countries. He is a consultant to the Centers for Disease Control and Prevention (CDC) and has been part of the Health Information for International Travel working group in the Division of Global Migration since 1997. He is the New York City site director for GeoSentinel, the emerging infectious diseases network of the CDC and ISTM. Dr. Connor was a member of the task force on Travel Medicine at the World Health Organization (WHO) in 2003. Dr. Connor has served as a consultant to the White House Medical Unit in the Clinton and Bush administrations and is an advisor in Travel Medicine for the U.S. Olympic Swim Team.

Dr. Connor received his medical degree from the University of Texas Southwestern Medical School in Dallas. He completed both his internship and residency in internal medicine at the University of Texas Health Science Center Hospitals in San Antonio and his fellowship in gastroenterology at the New York Hospital-Cornell University Medical College.

Dr. Connor is a Fellow of the American Gastroenterological Association (AGA-F), Fellow of the Infectious Disease Society of America (FIDSA) and was awarded Fellowship in the Royal College of Physicians and Surgeons (Glasgow) FFTM, FRCPS.

Prativa Pandey, Nepal, 2005 – 2007

Prativa Pandey Dr. Prativa Pandey is currently the medical director of the CIWEC Clinic Travel Medicine Center located in Kathmandu, Nepal and has been since 1998. CIWEC Clinic is one of the busiest travel clinics situated in a destination country and receives patients from over 75 different countries in any given year. Dr. Pandey was elected President of the International Society of Travel Medicine in 2005 and served as President till 2007. The society underwent robust membership and financial growth during her tenure as President and she served as Chair of the conference organizing committee for the Vancouver conference held in 2007.

Having been a graduate of medical college in New Delhi, India, she obtained her post graduate training in Internal Medicine from Boston, Massachusetts and was Board certified in that specialty. She returned to her home country after practicing medicine in the USA for 13 years to join Dr. David Shlim at the CIWEC Clinic in Kathmandu, Nepal in 1993. Under her leadership, the clinic got its own custom designed building and is now able to provide expanded services to travellers including inpatient care. In her practice, she combines the keen scientific knowledge she gained in the west with the compassionate caring attitude she grew up with in the east to provide the best care travellers can receive away from home. CIWEC Clinic has served as a wonderful laboratory to study illnesses in travellers and research conducted here has helped define health risk for travellers to Nepal. Dr. Pandey has been an active participant of ISTM's GeoSentinel network.

Dr. Pandey has served on the Executive Board of Society of Internal Medicine of Nepal and was the founding president of America Nepal Medical Foundation Nepal chapter. She is currently Chairperson of the Open Learning Exchange Nepal that assists school children with computerized learning and very much enjoys being part of this project. She served as a volunteer physician for 3 months at the Himalayan Rescue Association's clinic at 14000ft near Everest Base Camp and has been on the medical advisory board of this association. She has traveled extensively but enjoys trekking in Nepal the most.

Frank von Sonnenburg, Germany, 2007 – 2009

Frank von Sonnenburg Frank v. Sonnenburg, M.D., MPH, is currently the Deputy Director of the Department of Infectious Diseases and Tropical Medicine at the University of Munich and Head of the Section of International Medicine and Public Health.

Prof. v. Sonnenburg is Board Certified in Internal Medicine and specialized in Infectious Diseases and Tropical Medicine. He worked extensively in developing countries on a variety of infectious diseases projects and in public health in general. Prof. v. Sonnenburg spent much time working in the Philippines, Tanzania and Jamaica. He also had the opportunity to work with the late Dr. Jonathan Mann for several years in Geneva in his Global Programme on AIDS.

Although Prof. v. Sonnenburg continued to participate in international studies, he has focused his energies more recently closer to home - being available to the 2 teenage sons, mentoring students, improving the travel clinic, and spending time on ISTM initiatives such as the meetings, the secretary/treasury and GeoSentinel. He has served as the secretary treasurer of the ISTM and was the chair of the CISTM7 in Innsbruck, Austria.

Alan J. Magill, United States of America, 2009 – 2011

Alan Magill Dr. Alan J. Magill is currently Director of the Division of Experimental Therapeutics, at the Walter Reed Army Institute of Research (WRAIR) in Washington DC in the USA. He is board certified in internal medicine and infectious disease. He has over 15 years of experience in developing new generations of vaccines, diagnostics, and anti-malarial drugs to prevent travel related infectious diseases.

Dr. Magill has had extensive international research experience in South America, Africa, and Southeast Asia working extensively in the field of malaria and leishmaniasis. He lived in Lima Peru from 1996-2000 and worked in the Peruvian Amazon. He then spent 2 years as the Head, Clinical Research, of the Malaria Vaccine Development Unit of the US National Institutes of Health before being appointed Science Director at WRAIR. Current interests include developing new anti-malarial drugs, and improved, point of care diagnostics. Dr. Magill was a key leader in the research and development effort for non-microscopic, rapid diagnostic tests for malaria that lead to approval of the first such test by the US FDA in 2007.

Dr. Magill is a frequently invited speaker on travel medicine related topics to numerous national and international meetings. He is an Attending Physician at the Walter Reed Army Medical Center, an active member of the American Society of Tropical Medicine and Hygiene serving as CME Courses Director and President of the Clinical Group, an invited participant in numerous national and international advisory committees and workshops, a Fellow of the American College of Physicians, a recipient of the Certificate of Knowledge in Tropical Medicine and Travellers Health of the ASTM&H, Lead Editor for the 9th edition of Hunter's Tropical Medicine, and has a dual appointment as Associate Professor of Medicine and Associate Professor of Preventive Medicine and Biometrics at the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, MD.

Dr. Magill is the author of over 60 peer-reviewed publications, 115 abstracts, and 12 book chapters. He has been a member of the ISTM since 1992 serving as Associate Chair, Scientific Program Committee, CISTM9, 2003 - 2005 and Associate Chair, Scientific Program Committee, CISTM10, 2005 - 2007. He remains clinically active in pre and post travel settings and inpatient infectious disease service.

Fiona Genasi, United Kingdom, 2011 – 2013

Fiona Genasi Fiona is Nurse Consultant in Travel Health Medicine, responsible for national travel medicine programmes at Health Protection Scotland, the agency that oversees travel medicine there. Fiona develops policy and services in travel and international health for the Scottish Government, physicians, nurses, pharmacists, other health professionals and organisations, and the general public. Fiona has been an ISTM member since its inception and has previously served in most of the leadership roles within the Society.

Fiona qualified with a nursing degree in 1984, before specialising in Infectious Diseases, Tropical and Travel Medicine. She gained a Masters degree from the University of Glasgow in 1992, and is an Honorary Lecturer in Epidemiology within the Public Health Medicine Department there. In 2006 she was admitted to the Royal College of Physicians and Surgeons of Glasgow as a Founder Fellow within the Faculty of Travel Medicine. She sits on the College Examination Board for the Diploma in Travel Medicine and regularly teaches and examines at post-graduate level. Fiona has co-authored three textbooks in travel medicine and numerous other publications on the topic.

Fiona has travelled extensively, and worked abroad in countries such as India and Iraq on education, research and humanitarian projects. She is an active member on various national and international groups and committees, including the UK Advisory Committee on Malaria Prevention (ACMP), and EuroTravNet . Fiona was actively involved in the genesis of the winning proposal for EuroTravNet , designed to build a network to support travel and tropical medicine related activities in Europe, which is funded by the European Centre for Disease Prevention and Control (ECDC).

David R. Shlim, United States of America, 2013 – 2015

David R. Shlim Dr. Shlim has served as Medical Director at the Jackson Hole Travel and Tropical Medicine Clinic since 1998. Born in Portland, Oregon, Dr. Shlim received his M.D. in 1976 from Rush Medical College. He served his residency at Good Samaritan Hospital and Medical Center in Portland, Oregon.

Dr. Shlim worked in family practice and emergency medicine from 1977 through 1983. He served three volunteer seasons at the Himalayan Rescue Association aid post at Pheriche, Nepal in 1979, 1980, and 1982 and was the Medical Director of the CIWEC Clinic Travel Medicine Centre in Kathmandu, Nepal from 1983 to 1998.

Dr. Shlim was the Course Chairman for Medicine for Adventure Travel (a travel medicine course in Jackson Hole, Wyoming) from 1993 to 2006. He served as Secretary/Treasurer of the Clinical Group of the ASTMH from 2001-2003. Dr. Shlim's ISTM roles have included serving on the scientific program committee, the exam committee, the publications committee and has been an editorial board member of the Journal of Travel Medicine since its inaugural issue. Dr. Shlim also served as a Counsellor on the ISTM Board of Directors as a Counsellor from 2007 to 2011, followed by President-Elect from 2011-2013.

Dr. Shlim has published more than 40 original articles on travel medicine issues. He is the co-author of Medicine and Compassion: A Tibetan Lama's Guidance for Caregivers, which is available in English, German, Italian, Spanish, and Catalonian. He is currently Medical Editor of the CDC's Health Information for International Travel.

Annelies Wilder-Smith, Singapore (currently Switzerland), 2015 – 2017

Annelies Wilder-Smith Annelies Wilder-Smith is Professor of Emerging Infectious Diseases at the London School of Hygiene and Tropical Medicine (part-time), and Consultant at the Initiative for Vaccine Research at the World Health Organization, Geneva. She is in charge of dengue and Zika vaccine development at WHO. Furthermore, she is Scientific Coordinator of an international consortium called "ZikaPLAN" ( funded by the European Commission under Horizon 2020. She coordinates 25 institutional global partners to address research gaps with regards to Zika virus infections. From 2011 to 2016, she led another EU funded research consortium "DengueTools" to investigate innovative tools for the surveillance and control of dengue.

A physician with expertise in travel and tropical medicine, she is the Immediate Past President of the International Society of Travel Medicine (ISTM), and Past-President of the Asia Pacific Society of Travel Medicine. Her special research interests include vaccine preventable and emerging infectious diseases, in particular related to arboviral diseases. With a career spanning almost three decades, she has led and co-led various vaccine trials, published more than 260 scientific papers, edited and co-edited textbooks, and served on various scientific committees. Her awards include the Myrone Levine Vaccinology Prize, the Honor Award for exemplary leadership and coordination in determining and communicating global yellow fever risk, the Mercator Professorship award by the German Research Foundation and the Ashdown Oration Award by the Australian College of Travel Medicine.

Leo Visser, The Netherlands, 2017 – 2019

Leo Visser Leo Visser holds a position as professor and is head of the Department of Infectious Diseases ( at the Leiden University Medical Centre in The Netherlands.

He studied medicine at the Catholic University of Leuven in Belgium and graduated in 1985. He continued his medical training and was board certified for internal medicine in 1990 at the same University. He was registered as an infectious diseases specialist at Leiden University Medical Centre in 1992 and obtained his PhD at the Leiden University in 1997. In 2014 he received a professorship in Infectious diseases and travel medicine at the Leiden University.

Leo Visser is involved in clinical care, research and teaching in infectious diseases, with the emphasis on vaccine-preventable and tropical diseases, travel medicine and global health. He is head of the travel clinic, which is a centre for reference on travel medicine and vaccination in The Netherlands. He holds a lectureship at the Dutch National School of Public and Occupational Health. He is deputy director of the post-graduate training in internal medicine and director of the postgraduate training for infectious diseases at the Leiden University Medical Centre.

Leo Visser is a member of the steering committee of TropNet ( His current research activities involve vaccination responses in immunocompromized hosts, immuneresponse to yellow fever vaccine; immunogenicity and safety of intradermally administered vaccines, and malaria vaccine research in collaboration with the Universtiy of Nijmegen.