The Sabin Vaccine Institute’s leadership team is comprised of a diverse group of global health, development and international relations experts.
Michael W. Marine, Ambassador (Ret.)
Peter J. Hotez, MD, PhD
Ciro de Quadros, MD, MPH
Larry Ellingsworth, PhD
Neeraj Mistry, MD, MPH
Brian Davis, CPA
Michelle K. Brooks
Ana Flavia Carvalho, MBA, MPH
Richard J. Hatzfeld
Marcia de Souza Lima, MD
Chief Executive Officer
Michael W. Marine, former U.S. Ambassador to the Socialist Republic of Vietnam, was appointed as the Chief Executive Officer of the Sabin Vaccine Institute on April 28, 2010.
Mr. Marine joined Sabin's leadership team in December 2009 after serving eight months on the Joint Action Committee of the Global Network for Neglected Tropical Diseases, an advocacy and resource mobilization initiative of Sabin.
He was a member of the U.S. State Department’s Foreign Service for 32 years and served as Ambassador to the Socialist Republic of Vietnam from September 2004 to August 2007.
Earlier in his Foreign Service career, Mr. Marine was Deputy Chief of Mission at the U.S. Embassies in Beijing, China, Nairobi, Kenya and Suva, Fiji. He also served in program direction positions in U.S. diplomatic posts in Moscow, Russia, Bonn, Germany and Guangzhou, China.
Mr. Marine enlisted in the U.S. Marine Corps in 1967 and completed his service with the rank of Captain in 1971. He graduated Phi Beta Kappa and summa cum laude from the University of California at Santa Barbara in 1974 with a degree in Asian Studies. He entered the Foreign Service in 1975. His early assignments were as a consular officer in Martinique, French West Indies and London, England, and as a political officer in Hong Kong. He received the State Department’s Superior Honor Award six times.
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President, Sabin Vaccine Institute and Texas Children's Hospital Center for Vaccine Development and dean of the First National School of Tropical Medicine at Baylor College of Medicine
Peter Hotez, MD, PhD, is President of the Sabin Vaccine Institute and leads the Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development based at the Baylor College of Medicine in Houston, Texas. He is the Texas Children’s Hospital Endowed Chair of Tropical Pediatrics and serves as Chief of the Section of Pediatric Tropical Medicine, Professor of Pediatrics and Molecular Virology & Microbiology and the founding Dean of the new National School of Tropical Medicine at Baylor College of Medicine.
His academic research focuses on vaccine development for a wide range of neglected tropical diseases around the globe, as well as studies to increase awareness about the neglected tropical diseases in developing countries and in the United States.
Dr. Hotez created the Sabin Vaccine Institute Product Development Partnership (PDP), which includes the Human Hookworm Vaccine Initiative, the Schistosomiasis Vaccine Initiative and newer efforts to develop vaccines for Chagas disease, leishmaniasis and SARS. In addition, Dr. Hotez was instrumental in creating the Global Network for Neglected Tropical Diseases, an innovative partnership dedicated to controlling the spread of neglected tropical diseases (NTDs) in developing nations.
Dr. Hotez graduated Phi Beta Kappa from Yale University in 1980 with a degree in Molecular Biophysics and Biochemistry and obtained both his MD and PhD from the medical scientist-training program at Weill Cornell Medical College and The Rockefeller University in New York.
Dr. Hotez serves as immediate past President of the American Society of Tropical Medicine and Hygiene and Editor-in-Chief of PLoS Neglected Tropical Diseases. He has served in membership or leadership roles with a multitude of professional organizations, including as a current member of the NIH Council of Councils Committee. He is a member of the Institute of Medicine of the National Academy of Sciences.
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Executive Vice President and Director, Vaccine Advocacy and Education
Ciro de Quadros, MD, MPH, joined the Sabin Vaccine Institute in 2003 as Executive Vice President and leads their Vaccine Advocacy and Education program.
Before joining Sabin, Dr. de Quadros was Director of the Division of Vaccines and Immunization at the Pan American Health Organization. He also served as the World Health Organization's Chief Epidemiologist for the Smallpox Eradication Program in Ethiopia from 1970 to 1976.
Dr. de Quadros is a leader in the development of successful surveillance and containment strategies for the eradication of smallpox worldwide, and has directed successful polio and measles eradication efforts in the Americas.
Dr. de Quadros serves as Associate Adjunct Professor at the Johns Hopkins School of Hygiene and Public Health in Baltimore, MD; and an Adjunct Professor in the Department of Tropical Medicine at The George Washington University School of Medicine and Health Sciences in Washington, DC. He completed his medical and public health studies in Brazil.
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Vice President and Deputy Director, Sabin Product Development Partnership (PDP)
Larry Ellingsworth, PhD, has over 25 years of experience in the biopharmaceutical and medical device industries, with proven expertise in human infectious diseases and the development of bacterial and viral vaccines, novel adjuvant strategies, and vaccine/adjuvant delivery platforms. Dr. Ellingsworth has held numerous executive positions in both public and private companies, working most recently as the Senior Vice President and Chief Scientific Officer for Intercell USA.
Dr. Ellingsworth holds his Doctorate in Immunology from the University of California; his Masters in Genetics from California State University; and his Bachelors in Genetics from the University of California. He is an accomplished Research Scientist and publisher author.
Managing Director, Global Network for Neglected Tropical Diseases
Neeraj Mistry, MD, MPH, joined the Global Network for Neglected Tropical Diseases in July 2010 as Managing Director. With a focus on advocacy and resource mobilization, he creates partnerships and bridges cross-cutting development themes to grow and strengthen the movement of controlling and eliminating neglected tropical diseases (NTDs).
A public health physician, Dr. Mistry was a founding member and former Vice President of the Global Business Coalition on HIV/AIDS, Tuberculosis and Malaria (GBC), and brings extensive experience in global health policy and programming, having worked in developing and developed countries, in the public and private sectors, across clinical practice, health policy and social development.
While at GBC, Dr. Mistry led the technical strategy of business engagement in global health and. developed the Business AIDS Methodology (BAM™) and Best Practice AIDS Standard (BPAS™) and conceptualized and led GBC's work on co-investment and public-private partnerships with the President's Emergency Plan for AIDS Relief (PEPFAR) and the Global Fund, where he continues to support the technical review panel.
Dr. Mistry serves on the Board of African Services Committee and the International Advisory Board of the END Fund, the world’s first private philanthropic initiative to combat the seven most common NTDs. Following the completion of his medical training at the University of the Witwatersrand Medical School in Johannesburg, South Africa, Dr. Mistry focused on HIV/AIDS, occupational health, family practice and sexual and reproductive health. Dr. Mistry also worked at the National Health Service (NHS) in London and with Merck & Co. Inc. dealing with public affairs for Europe, the Middle East and Africa. He holds a Master's degree in Health Policy and Economics from the London School of Economics and Political Science. He is currently reading for a Master’s degree in Liberal Arts at Johns Hopkins University. He lives in Washington, DC with his wife and two daughters.
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Chief Operating Officer
Brian Davis has worked with the Sabin Vaccine Institute since 2005 and has served as their Chief Operating Officer since 2008. Prior to joining Sabin, Mr. Davis owned an established accounting practice in Washington, DC that served the non-profit sector in areas of life science, education, economic development and low-income housing. Mr. Davis holds CPA certificates in Maryland and the District of Columbia as well as a BA in Business Administration with a major in Finance from Michigan State University. Mr. Davis is a member of the American Institute of CPAs.
Policy Director, Global Network for Neglected Tropical Diseases
Michelle Brooks joined the Sabin Vaccine Institute as Policy Director for the Global Network for Neglected Tropical Diseases in February 2010. She advances the key advocacy messages and policy recommendations of the Global Network.
Prior to joining Sabin, Ms. Brooks was the Deputy Chief of Staff and Director of Congressional Relations at the U.S. Peace Corps. She also served as Vice President of Government Relations for the Council of Federal Home Loan Banks (FHLBanks) in Washington, D.C.
Ms. Brooks graduated from California Polytechnic State University at San Luis Obispo with a Bachelor's degree in Business Administration concentrating in International Management.
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Director, International Association of Immunization Managers
Peter Carrasco joined the Sabin Vaccine Institute in 2012 as Director of the International Association of Immunization Managers (IAIM) Secretariat.
From 1979 to 2010, Mr. Carrasco worked with the World Health Organization’s (WHO) immunization program. Starting in 1979 and continuing in 2003, Mr. Carrasco was stationed in Washington DC, after which he assumed the position of Policy Advisor- Vaccine Security in the Department of Immunization, Vaccines and Biologics at WHO Headquarters in Geneva, Switzerland.
Mr. Carrasco began his public health career working with WHO’s Smallpox Eradication Program. He worked in the Ethiopian Smallpox Eradication Program as a U.S. Peace Corps Volunteer from 1972 to 1974. Later he worked as a WHO advisor in the Bangladesh Smallpox Eradication Program in 1974 and in the Somalia Smallpox Eradication Program from 1977 to 1978. Mr. Carrasco was on the team that controlled the last known (non-laboratory) outbreak of smallpox in the world, which occurred in Somalia in October 1977.
Mr. Carrasco is an accomplished public health officer in the field of vaccine preventable diseases, He supported and led field operations for the eradication of polio and later measles elimination efforts in the Americas. He also managed the day to day operations of the Pan American Health Organization (PAHO) Vaccine Revolving Fund for 24 years, which to this day continues to provide good quality vaccines at very affordable prices to PAHO Member States. He also led the WHO efforts in preparing countries in all WHO regions to deploy and vaccinate using the pandemic influenza vaccine A 2009H1N1 during the summer of 2009.
Mr. Carrasco received a Bachelor's degree in Political Science from University of Illinois and a Master’s degree in Public Health Administration from Michigan State University.
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Director, Special Projects
Ana Flavia Carvalho joined the Sabin Vaccine Institute in 2003, and she is currently the Director of Special Projects for Vaccine Advocacy. In this role she directs the international vaccine advocacy programs for new and under-utilized vaccines.
Before joining Sabin, Ms. Carvalho was the Co-founder and Manager of a construction company that built houses for low income families in the city of Campo Grande, Brazil. She also worked as the Senior Financial Analyst for Procter & Gamble in Brazil where she was primarily involved in business and project administration.
Ms. Carvalho received her Bachelor’s degree in Office Automation Technology from the University of Technology in São Paulo, Brazil, a Master’s degree in Business Administration from the Fundação Getulio Vargas (FGV) in Brazil and a Master’s in Public Health degree from The George Washington University.
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Richard Hatzfeld is the Communications Director at the Sabin Vaccine Institute and oversees all communications activities related to Sabin’s vaccine development and advocacy efforts, as well as the Global Network for Neglected Tropical Diseases.
For the past 15 years, Mr. Hatzfeld has worked in international market development for both corporate and nonprofit organizations and has direct work and living experience in Africa, Asia and Europe. Prior to joining Sabin, Mr. Hatzfeld was a Senior Consultant at APCO Worldwide, where he specialized in developing public-private partnerships, corporate responsibility platforms and strategic communication on behalf of major health, technology and international development clients.
He came to APCO from Discovery Communications, where he was the Africa Program Officer for the Discovery Channel Global Education Partnership. In this capacity, he established offices in Nigeria, Ghana and Angola and worked with host governments and corporate partners such as Chevron and The Coca-Cola Company to build out video learning centers in West and Southern Africa.
Prior to that, Mr. Hatzfeld led a major health program in the Democratic Republic of the Congo on behalf of Population Services International, USAID and the Congolese Ministry of Health that built the first family planning, maternal/child health and HIV/AIDS counseling network in the country.
Before his work in the nonprofit sector, Mr. Hatzfeld was a senior marketing manager with Sprint Telecom, where he oversaw product marketing for Sprint’s $400 million remote access service, and began his career in Southeast Asia as a marketing manager with Nabisco International. He earned his Bachelor’s degree in History and French Literature from Grinnell College and his Master of Business Administration from the Olin School of Business at Washington University in St. Louis.
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Director, Resource Development
Tara Hayward is Director, Resource Development at the Sabin Vaccine Institute and oversees fundraising activities related to Sabin’s work to reduce vaccine-preventable and neglected tropical diseases. Since 2010, she has led the development and implementation of Sabin’s annual fundraising plan to cultivate government, foundation, corporate, and high net-worth individual fundraising activities.
Prior to joining Sabin, Ms. Hayward served as the manager of development for the International Women's Media Foundation where she was responsible for creating and managing the infrastructure and operations of annual giving, foundation and corporate fundraising, and special events. Her prior experience also includes working with United Nations Population Fund in Bosnia and Herzegovina and serving in the Peace Corps in Romania.
She holds a Master’s degree in International Development from the University of Denver in the Josef Korbel School of International Studies and a Bachelor’s degree from DePauw University, where she majored in English Writing.
Director, Sustainable Immunization Financing
Mike McQuestion, PhD, MPH, joined Sabin’s Vaccine Advocacy and Education team in 2007 as Director of the Sustainable Immunization Financing program. Dr. McQuestion, who holds a PhD in Sociology from the University of Wisconsin and a Master's in Public Health degree from Tulane University, brings with him a wealth of experience in public health. In addition to his extensive teaching and research experience at the university level, he has been the Global Supervisor for the PolioPlus Program of the Rotary Foundation of Rotary International, Technical Officer for PAHO's Diarrheal Diseases Control Program and a volunteer in the U.S. Peace Corps. Dr. McQuestion has travelled extensively, is fluent in Spanish and French and has lived in Colombia and the Philippines.
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Director, Coalition against Typhoid Secretariat
Christopher B. Nelson, PhD, MD, joined the Sabin Vaccine Institute in 2010 as Director of the Coalition against Typhoid Secretariat. Dr. Nelson has worked in global health for over 20 years.
Before joining Sabin, he worked as a consultant in global health—with a focus on international organizations and new vaccine introduction—in middle and low income countries. Most recently, Dr. Nelson served as Senior Director at Merck Vaccines Division where he informed life cycle management choices for key brands to ensure global product relevance and competitiveness. In addition, he facilitated the accelerated launch of rotavirus and HPV vaccines through global, regional and national governmental affairs and medical affairs activities. He also served as the International Federation of Pharmaceutical Manufacturers & Associations (IFPMA) representative to international working groups that included the World Health Organization (WHO), UNICEF, the GAVI Alliance and the Bill & Melinda Gates Foundation.
From 1997 to 2006, Dr. Nelson worked on international policy and vaccine introduction strategies in low and middle income countries as a scientist at the WHO. His responsibilities included clinical research, technical strategies (disease burden estimates, surveillance systems and impact assessment) and policy in support of the accelerated adoption of HepB, Hib, meningococcal, rotavirus and other vaccines in Africa and Asia.
Dr. Nelson received a Bachelor's degree in Biology from Purdue University, a Master’s in Public Health degree from the University of Michigan and a PhD in Epidemiologic Science from the University of Michigan.
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Director, Programs and Operations, Global Network for Neglected Tropical Diseases
Marcia de Souza Lima, MD, joined the Global Network for Neglected Tropical Diseases as Director of Programs and Operations in January 2011. She is an ophthalmologist, and prior to her work at the Global Network, Dr. de Souza Lima served as Chief Medical Officer at The ReLeef Initiative, a nonprofit pharmaceutical company, and as Vice President of Global Clinical Development at Bausch & Lomb, Inc. Prior to this engagement she was responsible for Pfizer’s U.S. ophthalmology medical affairs team.
At the Global Network, Dr. de Souza Lima manages the organization’s operations and provides key support to the Managing Director. Her team is responsible for the Global Network’s regional advocacy and resource mobilization activities. Dr. de Souza Lima has travelled extensively, providing direct ophthalmological services to disadvantaged communities in Brazil and in the Dominican Republic. She is currently working towards her Masters of International Public Policy at Johns Hopkins University in The Paul H. Nitze School of Advanced International Studies (SAIS).
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