International Society of Travel Medicine
E-mail: ISTM@ISTM.org
Skypename: istm.office
Office hours: Monday - Friday, 9.00 - 17.00 EDT (UTC-04)

Project Staff

Leadership Team


David Hamer
(click to learn more)

Elizabeth Barnett
(click to learn more)

Karin Leder
(click to learn more)

Marc Mendelson
(click to learn more)

Patricia Schlagenhauf
(click to learn more)

Phyllis E. Kozarsky
(click to learn more)

CDC Project Staff


Kristina Angelo
(click to learn more)

Douglas H. Esposito
(click to learn more)

Calvin Patimeteeporn
(click to learn more)

Mark Sotir
(click to learn more)

Rhett Stoney
(click to learn more)

Administration


Elena Axelrod, MSc
(click to learn more)

Jodi Metzgar
(click to learn more)

Kayce Maisel
(click to learn more)

Diane Nickolson
(click to learn more)

Nancy Pietroski
(click to learn more)

Data Use and Publication Committee

Andrea Boggild, MD (Toronto, ON, Canada), Chair
Philippe Gautret, MD (Marseille, France)
Martin Grobusch, MD (Amsterdam, The Netherlands)
Stefan Hagmann, MD (Bronx-Lebanon, NY, USA)
Poh Lian Lim, MD (Singapore)

Send questions or comments to geosentinel@ISTM.org


Leadership Team

David Hamer, MD - Principal Investigator

Professor of Global Health and Medicine
Boston University School of Public Health and School of Medicine
Boston, MA, USA

David Hamer obtained a BA from Amherst College (majors in biology and French) and a MD degree from the University of Vermont College of Medicine. After an internal medicine residency at the Washington Hospital Center, he completed specialty training in infectious diseases in the Department of Geographic Medicine and Infectious Diseases at Tufts Medical Center. He is a Professor of Global Health and Medicine at the Boston University Schools of Public Health and Medicine and an Adjunct Professor of Nutrition, Tufts University Friedman School of Nutrition Science and Policy.

Dr. Hamer recently returned to Boston, MA, USA after having spent nearly four years serving as the Director of Research and Evaluation at the Zambia Center for Applied Health Research and Development in Lusaka, Zambia. Since June 2014, he has been the Principal Investigator of the ISTM GeoSentinel project. Dr. Hamer currently serves as the Director of the Travel Clinic and is a member of the Section of Infectious Diseases at Boston Medical Center. He is a board-certified specialist in infectious diseases, with a particular interest in tropical infectious diseases, who has twenty years of field research experience in micronutrients, malaria, HIV/AIDS, pneumonia, and diarrheal diseases. During the last decade he has supervised and provided technical support to more than 50 studies in developing countries that evaluated interventions for the improving neonatal survival, treatment and prevention of malaria, HIV/AIDS, micronutrient deficiencies, diarrheal disease, and pneumonia. He is overseeing multiple studies on maternal, newborn, and child health in Uganda, Zambia, and Ecuador.

Elizabeth Barnett, MD - Co-Investigator

Chair, Special Populations Working Group
Professor of Pediatrics
Boston University School of Medicine
Boston, MA, USA

Elizabeth Barnett is a pediatrician with a specialty in infectious diseases working in an urban hospital with a large international population.  Her career focus has been in general pediatric infectious diseases, travel and topical medicine, immigrant medicine, vaccines and vaccine safety, and antimicrobial therapy and resistance.  With colleagues in the adult infectious diseases group, she founded the Travel Clinic at Boston Medical Center in the early 1990s and the Refugee Health Assessment Program a few years later.  Her research interests have included travel medicine – through the Boston Area Travel Medicine Network (BATMN), a collaboration of 5 travel clinics in the Greater Boston Area – immigrant medicine, and vaccines, including participation in clinical trials of Japanese Encephalitis vaccine in children and oral cholera vaccine.  Dr. Barnett has been Site Director for the Boston GeoSentinel site since the 1990s, contributing over 6000 records.  Current academic and administrative activities include being the Pediatric Infectious Diseases Fellowship Program Director, a member of the BUSM Promotions Committee, and a member of the Leadership Group of GeoSentinel.  Dr. Barnett has also been active in ISTM for over 20 years, including participation in the Migrant Interest Group, Director/Co-Director of the ISTM Review Course, and member and now Co-Director of the Research Committee.

Marc Mendelson, MD, PhD - Co-Investigator

Chair, Enhanced Clinical Surveillance Working Group
Professor and Head of the Division of Infectious Diseases and HIV Medicine
University of Cape Town
Cape Town, South Africa

Associate Professor Marc Mendelson studied Medicine at St Mary's Hospital, London. He specialized in Infectious Diseases at Addenbrookes Hospital, Cambridge, where he attained his PhD before moving to The Rockefeller University, New York, to work on tuberculosis and innate immunity. Marc moved to University of Cape Town (UCT) in 2001 to continue his research and in 2007, was appointed as Principal Specialist and Head of Division of Infectious Diseases & HIV Medicine at Groote Schuur Hospital, UCT.

He is Director of the Cape Town GeoSentinel Travel Surveillance Site, current head of the GeoSentinel Publications Committee and an associate editor for the Journal of Travel Medicine. His main focus in Travel Medicine is in the clinical management of returning travellers, and the HIV-infected traveller. He has authored GeoSentinnel publications on risks to travellers to the FIFA World Cup in South Africa 2010, and on regional variation of travel-related illness in travellers to Africa. He has published over 50 papers and numerous book chapters.

Dr Mendelson is the current President of the Infectious Diseases Society of Southern Africa (IDSSA) and of the Federation of Infectious Diseases Societies of Southern Africa (FIDSSA). He is co-chair of the South African Antibiotic Stewardship Programme (SAASP) and is involved with WHO in clinical management of Influenza. Dr Mendelson is organizing Chair of Options for Control of Influenza VIII, 2013 and local organizing chair of the 16th International Conference on Infectious Diseases, 2014. He is married with 3 children and lives amongst the Constantia vineyards in Cape Town.

Karin Leder, MD, MPH, PhD

Chair, Data Collection Working Group
Head, Infectious Disease Epidemiology Unit
School of Epidemiology and Preventive Medicine
Monash University
Melbourne, Australia

Professor Karin Leder is a specialist infectious disease physician in Melbourne, Australia  (MBBS, FRACP, PhD, MPH, DTMH) who currently holds the positions of i) Head of the Infectious Disease Unit in the School of Epidemiology and Preventive Medicine at Monash University and ii) Director of Travel Medicine and Immigrant Health Services at the Victorian Infectious Diseases Service, Royal Melbourne Hospital. Her main clinical expertise is in imported infections, and her three primary areas of research interest are:

  1. Infections acquired overseas among travellers and immigrants.
  2. Health and water, particularly the burden of waterborne disease.
  3. Epidemiology and prevention of community-acquired and nosocomial infections.

Karin has published over 170 research publications/reports and book chapters, many of which focus on travel medicine and parasitic infections. Karin is a past Executive Board member of  ISTM, has served on the Scientific Committee of many CISTMs, and is immediate past president of the Asia Pacific Travel Health Society. She is also a member of the leadership team as well as the Melbourne site director for GeoSentinel. Sheis on the Editorial Board of the JTM and TMAID, and is Editor for the Travel Medicine section of UpToDate.

Patricia Schlagenhauf, PhD

Chair, Tracking and Communications Working Group
Professor, University of Zürich
WHO Collaborating Centre for Travellers' Health
Epidemiology, Biostatistics and Prevention Institute
Zürich, Switzerland

Phyllis E. Kozarsky, MD - Special Advisor

Professor of Medicine
Emory University School of Medicine
Expert Consultant CDC/NCPDCID/DGMQ/Travelers' Health Branch
Atlanta, GA, USA

Phyllis Kozarsky, MD is a Professor of Medicine and Infectious Diseases at Emory University. She started Emory’s travel and tropical disease clinic in 1988 and began working as a consultant to CDC’s Division of Global Migration and Quarantine (DGMQ)  shortly thereafter as the chief of travelers’ health. She remains a consultant to CDC’s DGMQ in travelers’ health and is the chief medical editor of CDC’s Health Information for International Travel, also known as the "Yellow Book."

Dr. Kozarsky is also a consultant to many organizations including the Coca-Cola Company, Delta Airlines, CNN, and Habitat for Humanity International. She received her bachelor's degree from Hobart and William Smith Colleges in Geneva, New York and her medical degree from Albert Einstein College of Medicine in New York. She is the author of many peer-reviewed articles, and is an active member many professional societies including the International Society of Travel Medicine and the American Society of Tropical Medicine and Hygiene. Her current research efforts have primarily focused on issues in clinical tropical medicine and travelers' health,  including the epidemiology of travel-related infections.

CDC Project Staff

Kristina Angelo, DO, MPH&TM

Medical Epidemiologist
CDC/OID/NCEZID/Traveler's Health Branch
Atlanta, GA, USA

Douglas H. Esposito, MD, MPH; CAPT, USPHS

Medical Epidemiologist
CDC/NCEZID/DGMQ/Travelers' Health Branch
Atlanta, GA, USA

Calvin Patimeteeporn, MSPH

ORISE Fellow, Surveillance & Epidemiology Team
CDC/NCEZID/DGMQ/Travelers' Health Branch
Atlanta, GA, USA

Mark Sotir, PhD, MPH

Lead, Surveillance and Epidemology Team
CDC/NCEZID/DGMQ/Travelers' Health Branch
Atlanta, GA, USA

Rhett Stoney, MPH

Data Analyst
CDC/NCEZID/DGMQ/Travelers' Health Branch
Atlanta, GA, USA

Administration

Elena Axelrod, MSc

ISTM Data and Finance Manager
International Society of Travel Medicine (ISTM)
Dunwoody, GA, USA

Jodi Metzgar

ISTM Deputy Director
International Society of Travel Medicine (ISTM)
Dunwoody, GA, USA

Kayce Maisel

ISTM Project Coordinator
International Society of Travel Medicine (ISTM)
Dunwoody, GA, USA

Diane Nickolson

ISTM Executive Director
International Society of Travel Medicine (ISTM)
Dunwoody, GA, USA

Nancy Pietroski, PharmD

ISTM GeoSentinel Data Analyst
International Society of Travel Medicine (ISTM)
Dunwoody, GA, USA