Speaker Biographies



Amy J Behrman, MD, FACP, FACOEM
Dr Behrman is a professor of Emergency Medicine and medical director for Occupational Health Services at the University of Pennsylvania. Her practice and academic interests focus on occupational infections, nosocomial infection prevention, vaccine preventable diseases, and adult immunizations. She is responsible for clinical care and surveillance programs for healthcare personnel, research staff, and veterinary staff at a large academic center. She is current chair of the national Medical Center Occupational Health Section of the American College of Occupational and Environmental Medicine.
Helen Diggs, MEd, DVM, DACLAM
Helen Diggs is the Senior Director for AAALAC International. She was previously the Attending Veterinarian, Director of Laboratory Animal Resources Center, and a Professor at the Carson College of Veterinary Medicine at Oregon State University. Prior to that she was Attending Veterinarian and Director of the Office of Laboratory Animal Care at the University of California- Berkeley. She earned her Veterinary degrees from Oregon State University and Washington State University. Helen served as an AAALAC International ad hoc beginning in 1994 and has been on AAALAC Council since 2007. She served as AAALAC Council Vice President from July – December 2018.
Julie Fischer, PhD

Dr. Fischer is a Research Associate Professor in the Department of Microbiology and Immunology and co-directs the Center for Global Health Science and Security at Georgetown University. Prior to joining Georgetown’s faculty in 2016, Dr. Fischer co-directed a multi-disciplinary team in the Milken Institute School of Public Health at the George Washington University, leading projects designed to help governments and international agencies understand the resources needed to detect, assess, report, and respond to emerging public health events effectively. From 2007-2012, Dr. Fischer directed Stimson’s Global Health Security Program, exploring the tools, policies, and partnerships that strengthen global capacities for disease detection and response.
Dr. Fischer is a former Council on Foreign Relations International Affairs Fellow and American Association for the Advancement of Science Congressional Science & Technology Fellow. She served as a microbiologist with a Thai-U.S. collaboration aimed at strengthening Thailand’s capacities to identify and control emerging infections of regional and global significance. As professional staff with the Senate Committee on Veterans’ Affairs, Dr. Fischer worked on issues related to emergency medical preparedness and the consequences of biological, chemical, and radiological exposures during military service.
Dr. Fischer received a Ph.D. in Microbiology and Immunology from Vanderbilt University and completed post-doctoral training in viral pathogenesis at the University of Washington and Seattle Biomedical Research Institute. She has authored numerous peer-reviewed publications, reports, manuals, and training tools.

Sarah Foster-Chang, DNP, APRN-BC, COHN-S

Sarah (Sally) Foster-Chang, DNP, APRN-BC, COHN-S, holds a bachelor’s degree in Human Biology from Stanford University, a BSN from the University of California, San Francisco and a Master’s degree from the University of Pennsylvania School of Nursing in Primary Care. In 2013, she completed a Doctorate of Nursing Practice Degree at Thomas Jefferson University. She has been invited to present on a variety of primary care and occupational health topics at Federal National Occupational Health conferences, the American College of Occupational and Environmental Medicine, the UMDNJ School of Medicine, the University of Pennsylvania Occupational Health Medical Residency program, State Nurses Association meetings, the Association of Occupational Health Professionals in Healthcare, The American Association of Occupational Health Nurses and five nurse practitioner training programs in Pennsylvania and New Jersey. She has published several articles and book chapters and is a reviewer for Workplace Health and Safety. Currently an Environmental and Occupational Health Nurse Consultant, EBP mentor and a clinical nurse practitioner, she has over 30 years of experience in corporate, hospital and migrant worker occupational health and has established four different OH programs for four different health systems. She has served as the Vice Chairman of the National VA Occupational Health Advisory Board (elected by her peers), as a National Administrator for OHRS (a VA national, web-based electronic medical record for occupational health) and a program management consultant for the national VA Occupational and Environmental Medicine consult team. In 2018, she was asked to join the CDC workgroup to develop the companion document for the new healthcare workers TB screening guidelines.

Gary Fujimoto, MD
Gary Fujimoto, MD, is currently an Occupational Medicine consultant in private practice in Los Altos, California, working with a variety of high technology, biotechnology and pharmaceutical research groups both nationally and internationally.
Gary was formerly Program Director, Occupational Medicine Department, Health Care Division, Palo Alto Medical Foundation and Adjunct Clinical Associate Professor of Medicine, Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, and on the Active Medical Staff, Department of Emergency Medicine (Surgery), Stanford University School of Medicine.
Gary was twice honored with an Excellence in teaching award from Stanford University School of Medicine.
He served as the principal medical consultant for biological and chemical exposures at Stanford University for over 20 years, and has served on the Institutional Biosafety Committees for several pharmaceutical and biotechnology companies. Gary also serves on the board of the Griffin Foundation, and has been involved with the occupational health colloquium since its beginning.
David Harbourt, PhD, CBSP
Dave currently serves as the Biological Safety Officer at the United States Army Medical Research Institute of Infectious Diseases (2012-present). Prior to USAMRIID, he was a fellow in the National Biosafety and Biocontainment Training Program. Before the fellowship, he graduated with his B.S. in Biochemistry from Virginia Tech and his Ph.D. in Toxicology from UNC-Chapel Hill.
Dave has been an ABSA member since 2010 and has previously served as the Chair of the Pre-Conference Course Committee and currently serves as Chair of the Training Tools and Resources Committee in addition to being a member of the Standards Committee, Professional Development Team and Select Agent Community Advisory Committee for ABSA. Locally, Dave has previously been a Councilor for the Chesapeake Area Biosafety Association as well has chair of the Scientific Program Committee for its annual symposium. Dave is also currently a member of the Exam Development Committee for the SM biosafety exam and Chair of the DoD Biosafety and Scientific Review Panel. Dave is certified as a biosafety professional through both ASM and ABSA.
Lewis A. Hofmann, MD, FAAFP
Dr. Lewis A. Hofmann is Director, Medical for Shoreland, Inc and Red Cross Volunteer Physician to the Air Force Acupuncture and Integrative Medicine Center, where he draws upon his quarter century of service as a United States Air Force officer and physician to provide premier medical services to “special missions” populations.
From 2000-2009, Dr. Hofmann served as the White House Physician for the Vice President, and Director, Vice Presidential Medical Operations. In this capacity, Dr. Hofmann required a Top Secret security clearance to orchestrate comprehensive medical support for the Vice President and his travel team, and develop contingency plans to safeguard an Enduring Constitutional Government. Following his service at the White House, Dr. Hofmann was selected to command the Pentagon Flight Medicine Clinic at Andrews Air Force Base, Camp Springs, Maryland, where he was the senior flight surgeon for Air Force One. During these years, he traveled to over 100 countries, representing more than 85% of the world’s population. In addition to delivering medical care around the globe and around the clock, Dr. Hofmann liaisoned with international medical executives while evaluating their healthcare systems and challenges.
Dr. Hofmann has practiced the full scope of Executive and Family Medicine; from austere outposts in northern Japan to community-level teaching hospitals in the southeastern United States, to major medical centers in the National Capital Region. He has extensive deployment experience, having served as the sole physician for Operation Quicklift in the Balkan War, accompanied United States congressmen throughout Africa, and participated in countless Department of Defense Banner Special Air Missions.
Dr. Hofmann graduated summa cum laude from Creighton University in 1984 as an ROTC Distinguished Graduate. In 1988, he earned his medical degree from the Uniformed Services University of the Health Sciences, and went on to complete residency specialty training in Family Medicine where he was selected Chief Resident. Dr. Hofmann was also selected for fellowship training at the University of North Carolina (Chapel Hill) Family Medicine Faculty Development program. He is certified in medical hypnosis and acupuncture. Colonel Hofmann received his flight surgeon wings from the School of Aerospace Medicine in San Antonio, Texas, where he received the Leadership Award. He is a graduate of both the Air Command and Staff College, and the Air War College (where he further distinguished himself). He holds an academic appointment as an Assistant Clinical Professor in Family Medicine at the Uniformed Services University of the Health Sciences School of Medicine. Twice he has been selected “Instructor of the Year”.
Dr. Hofmann is a Fellow of the American Academy of Family Physicians, and has served as President of the Uniformed Services Academy of Family Physicians, the largest chapter of one of the country’s largest medical specialty organizations, representing more than 1,300 uniformed family doctors around the world. Dr. Hofmann retired with the rank of Colonel on October 1, 2010 having accumulated more than 900 flight mission hours (including 71 combat hours) on 17 airframes. For service that brought great credit upon the Nation, the Secretary of Defense awarded him the Defense Superior Service Medal.
Dr. Hofmann now lives in Crofton, Maryland, with his wife (and favorite nurse), Sandra, and their four children, Christopher, Sarah, Audrey, and Sophie.
Yolanda Lang, DNP, APRN-BC, COHN-S

Yolanda is an ANCC board certified adult nurse practitioner and is a Certified Occupational Health Nurse from the American Board of Occupational Health Nurses. In 2007 she received her Fellowship distinction from the American Association of Occupational Health Nurses (AAOHN). Yolanda currently provides health screening and wellness interventions to employees at Conway Medical Center while teaching at Coastal Carolina University School of Nursing.

Rebecca Lingenfelter, MSPH

Rebecca Lingenfelter received her MSPH from the Department of Environmental and Occupational Health at the Texas A&M Health Science Center School of Rural Public Health.
She then completed a two-year fellowship with the National Biosafety and Biocontainment Training Program in 2010. Ms. Lingenfelter worked as a Biosafety Officer at the Jackson Laboratory from 2010 to 2015. She now serves as Associate Biosafety Officer in the Department of Health and Safety at the University of Pittsburgh.

Timothy Mandrell, DVM, DACLAM

Timothy Mandrell, DVM, DACLAM, is a vivarium planning and research animal program consultant for institutions in the US and abroad. He has extensive expertise in animal facility design and operation, animal biosafety and occupational health and safety. Dr. Mandrell is a Diplomate of the American College of Laboratory Animal Medicine (ACLAM) and is the author or co-author of over 60 published articles, abstracts, and book chapters. He is active professionally having served as President of the American Society of Laboratory Animal Practitioners (ASLAP) and a member of the board of directors and officer of ACLAM. He also serves as an Ad Hoc Specialist for AAALAC. Dr. Mandrell has been a speaker at numerous national meetings and workshops related to animal biosafety, occupational health, and design and construction of animal facilities. He served as chair of the American Association for Laboratory Animal Science committee that developed the AALAS Learning Library biosafety training program for animal technicians. Dr. Mandrell is a graduate of the University of Tennessee College of Veterinary Medicine and completed a postdoctoral fellowship in Comparative Medicine at the Johns Hopkins University School of Medicine. He recently retired as Director, Professor, and Department Chair at the University of Tennessee Health Science Center where he served for 25 years.

Derek Newcomer

Biography coming soon!

John Norton, DVM, PhD, DABT, DACLAM
Dr. Norton serves as the Director of the Division of Laboratory Animal Resources and is Professor of Pathology at Duke University as well as an Adjunct Professor of Clinical Sciences at North Carolina State University College of Veterinary Medicine. He is board-certified through the American College of Laboratory Animal Medicine (ACLAM) and the American Board of Toxicology (ABT). He holds bachelor degrees in biochemistry and animal science as well as a doctorate in veterinary medicine from North Carolina State University. Additionally, his Ph.D. in pharmacology was awarded from Vanderbilt University. Dr. Norton has 30 years of laboratory animal medicine and research experience including serving as Study Director and/or Manager in over 150 preclinical pharmacology and safety studies. In addition, he is integrally involved in the design and management of complex, multi-functional animal facilities. Dr. Norton is an Emeritus member of the AAALAC International Council on Accreditation and is a Past President of the Council. His collaborative research focuses on extrinsic factors which may influence the animal research model, specifically in the area of noise and vibration.
Serge Przedborski, MD, PhD
Dr. Przedborski is the Page and William Black Professor of Neurology (in Pathology and Cell Biology), the Chief of the Movement Disorders Division, the Vice-Chair of Research in the Department of Neurology as well as the Co-Director of the Motor Neuron Center and the Director of the Columbia Translational Neuroscience Initiative. He received his MD degree and his PhD degree in Neurological Sciences from the Université Libre de Bruxelles in Belgium and did his Postdoctoral training at Columbia University, where he joined the faculty in 1991.
Dr. Przedborski’s research is geared toward unraveling the molecular basis of neurodegeneration and devising therapeutic strategies to hinder the processes that cause neuronal death, the source of many debilitating disorders. To that end, his laboratory has concentrated its research efforts on the mouse models of amyotrophic lateral sclerosis (ALS) and Parkinson’s disease to unravel the contribution of non-neuronal cells such as astrocytes and microglia to the demise of neighboring neuronal cells in neurodegenerative disorders.
To date, Dr. Przedborski has coauthored more than 250 papers and fifteen books and book chapters. He has been the recipient of several Awards and Named-Lectures in recognition of his work in ALS and PD. Since he became a Columbia University faculty member, his research has been consistently supported by federal grants from both NIH and the DoD as well as by several private agencies including ProjectALS and the Parkinson Foundation. Dr. Przedborski is a Reviewing Editor for eLife, a former Senior Editor for the Journal of Neuroscience, and an Associate Editor of Movement Disorders. He has also been a member of several NIH study sections and currently serves as an ad hoc reviewer for the NIH, the Veterans Administration, the Department of Defense, the Canadian Medical Research Council, and his a regular reviewer for numerous medical journals including Science, Nature, Nature Neuroscience, Neuron, the New England Journal of Medicine, and the Proceedings of the National Academy of Science USA.
Gregg M. Stave, MD, JD, MPH
Gregg M. Stave, MD, JD, MPH is a consultant in Occupational Medicine and Corporate Health and is also Associate Consulting Professor in the Division of Occupational and Environmental Medicine at Duke University Medical Center in Durham, North Carolina. He spent 15 years as a corporate medical director for GlaxoSmithKline, based in Research Triangle Park, North Carolina, most recently as Director, Strategic Health Planning.
During his years at Glaxo, the organization received numerous internal and external awards including the American College of Occupational and Environmental Medicine (ACOEM) Corporate Health Achievement Award, the Koop Award, and the Institute for Health and Productivity Management Award.
Dr. Stave received his undergraduate degree from the Massachusetts Institute for Technology in Life Sciences. He received both his Medical Degree and Juris Doctor from Duke University and a Master of Public Health in Epidemiology from the University of North Carolina at Chapel Hill. He is board certified in Internal Medicine and Occupational Medicine and is a Fellow of the American College of Physicians, the American College of Occupational and Environmental Medicine, and the American College of Preventive Medicine.
Dr. Stave served as a member of the Board of Directors of ACOEM for 6 years and as Chairman of the Board of Trustees of the Occupational and Environmental Health Foundation for 15 years. He serves as Chairman of the Duke Occupational and Environmental Medicine Residency Advisory committee and served as Chairman of the Board of Directors for Prevention Partners for 8 years. In addition, he serves on the Board of Directors of the Museum of Life and Science.
Dr. Stave is co-editor of the award-winning Physical and Biological Hazards of the Workplace, recently released in the third edition. He also co-edited the State of the Art Review in Occupational Medicine on the Pharmaceutical Industry. He is the author of numerous book chapters and peer-reviewed articles.
Dr. Stave lives in Chapel Hill, NC with his wife, Dr. Christine M. Hunt, and daughter, Elise.
Henry Wu, MD
Dr. Henry Wu is an Assistant Professor and Senior Physician at the Emory University School of Medicine, and serves as the Director of the Emory TravelWell Center. Dr. Wu completed his medical degree at Harvard University and his training in infectious diseases at the University of Pennsylvania. He also has a diploma in tropical medicine and hygiene from the London School of Hygiene and Tropical Medicine. Dr. Wu previously served as a Medical Epidemiologist at the Meningitis and Vaccine Preventable Diseases Branch of the Centers for Disease Control and Prevention (CDC). His interests include the epidemiology of travel related infections, infections of the central nervous system, and the evaluation patients with potentially serious communicable diseases.