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Homie Razavi

Homie A. Razavi is the founder and managing director at the Center for Disease Analysis (CDA), an organization specializing in studying complex and poorly understood diseases. CDA’s goal is to study and publish data to help educate stakeholders and support decision-making in different countries.

Since 2008, Homie has led a team of epidemiologists and modellers to quantify the epidemiology of hepatitis, forecast the future disease burden and help countries develop national strategies. His team has been responsible for the development of a number of mathematical models currently used by countries to develop intervention strategies for hepatitis. In addition, his team has developed the Polaris Observatory, which collects and reports HCV, HBV and HDV epidemiology, disease burden and treatment rates for all countries.

He has a broad background, which includes basic research, commercial development, portfolio management, and decision analysis.  






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Julie Barbera

Julie Barbera is the office manager at the Center for Disease Analysis. Julie has over 25 years experience in technical publications, technical illustration and graphic design. She has worked as a publications specialist for Microsoft Corporation, Data I/O Corporation and The Boeing Company. She also has over 7 years experience in commercial property management.  






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Sarah Blach

Sarah Blach is a multidisciplinary public health professional with experience in academia, nonprofits, and state and county health departments. Prior to joining the Center for Disease Analysis, Sarah provided GIS mapping services for the Baltimore City Department of Health, grant-writing services for the Incentive Mentoring Program 501(c)(3) in Baltimore, and quantitative data analysis and GIS mapping services for the Center for Child and Community Health Research at Johns Hopkins University. Locally, Sarah’s projects have included grant writing, literature review preparation, and program planning for the Wyoming Department of Health; and qualitative data analysis for the Larimer County Department of Health and the Environment.

Sarah holds a Master of Health Science degree in Population Environmental Health, and a Certificate in Risk Sciences, from the Johns Hopkins Bloomberg School of Public Health. She received a Bachelor of Science degree in Biomedical Science from Colorado State University. Sarah is Certified in Public Health (CPH) through the National Board of Public Health Examiners. 






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Samantha Brandon

Samantha Brandon is a technical specialist at the Center for Disease Analysis. Prior to joining CDA, Samantha was a project manager at a Medtronic. There she lead the research and development of novel medical devices. She also worked with the Baltimore City Food Policy Initiative as a research assistant to develop quantitative data analysis of positive intervention and educational programs in areas of food deserts.

Samantha holds a Master of Science in Chemical & Biomolecular Engineering from The Johns Hopkins University. Her Master’s thesis was focused on nanotechnology and its practical applications in therapeutic cancer treatments. She also received a Bachelor's degree in the same discipline from The Johns Hopkins University.  






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Chris Estes

Chris Estes has extensive experience in data management and analysis. While at the Centers for Disease Control and Prevention (CDC), he managed a project to develop procedures for standardized coding of data from the National Electronic Injury Surveillance System. He was also part of a team that developed a survey for assessing injury-reporting behaviors in a national sample of workers. He has extensive experience with SAS and SPSS and has used statistical analyses to assess demographic trends in cardiovascular disease, diabetes and cancer. He has published a number of papers and presented at several conferences.

He has a Masters of Public Health in Epidemiology from Drexel University School of Public Health and a Bachelor of Science in Biology from Albright College.  






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Ivane Gamkrelidze

Ivane Gamkrelidze is a technical specialist at the Center for Disease Analysis. He works on developing parametric disease progression models, debugging existing models, developing and working with CDA databases, conducting analyses, and writing manuscripts and reports. Prior to joining CDA, Ivane worked as a data and process coordinator at Bright by Three in Colorado, where he developed distribution and tracking systems for the organization’s statewide initiative aimed at encouraging parent-child interaction.

Ivane holds a Bachelor of Arts degree in mathematics and economics from Amherst College. 






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Jessie Gunter

As part of CDA’s team of Epidemiologists, Jessie is responsible for collecting Hepatitis B, C, and Delta data and verifying estimates through meetings in English and Spanish with local experts in 21 countries, most of which are in Latin America. Additionally, as the HIV Project Lead, she analyzes HIV cohort data for a project in three European countries.

Prior to joining CDA, Jessie worked in an interdisciplinary research environment at the Virginia Bioinformatics Institute's Network Dynamics and Simulation Science Laboratory and the Virginia Tech Office of International Research, Education, and Development. Her work involved using social network analysis tools and epidemiological models of contagion to study technology adoption in East Africa, where she spent 5 months collecting survey data for a USAID-funded project.

Jessie holds a Master of Public Health degree in Infectious Disease and a Bachelor of Arts in International Studies from Virginia Tech. 






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Kimberly Murphy

Kimberly Murphy has over fifteen years of experience developing software for government and private industry. She has extensive application programming expertise, with a strong background in algorithm analysis, database programming and mathematical modeling.

She holds Bachelor of Science degrees in Mathematics and Computer Science from Drake University, also minoring in Physics. Upon completing undergrad, she was selected for the Engineer and Scientist Development program where she created mission planning and tactical report management software for radar based systems. She was responsible for design, development, and testing of framework, data access, user-interface, and map-based analysis software including 3D cost scheduling tools. A Navair Graduate Fellow, she received her Master’s of Science in Computer Science from the University of Southern California, completing research in modeling and simulation with emphasis in multimedia and creative technology.  






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Helen Nde

Helen is a public health researcher with experience in quantitative and qualitative data analysis, project coordination and grant writing. Prior to joining CDA, Helen worked as a research assistant and project coordinator at the Department of Public Health Sciences, Loyola University Chicago where she provided technical support for the Africa Sickle Cell Research Network, as well as the Africa Collaborative Hepatitis Network. Her work involved grant writing, survey design, data management and analysis, sample processing and project management.

Helen has a Masters in Public Health in Epidemiology from Loyola University Chicago and a Bachelors of Science in Journalism and Mass Communication from the University of Buea, Cameroon. 






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Devin Razavi-Shearer-Spink

Devin Razavi-Shearer-Spink is an analyst at the Center for Disease Analysis. Prior to joining CDA, Devin was a professional research assistant at the University of Colorado Spine Center. He has extensive experience in managing device clinical trials as well as study design and data analysis of both prospective and retrospective studies. Devin has authored a number of published abstracts.

Devin graduated with distinction from the University of Colorado Denver with a Bachelor of Science in Biology. Additionally, Devin holds Bachelor of Arts degrees in Anthropology and Ethnic Studies from the University of Colorado Boulder where he minored in History. 






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Sarah Robbins

Sarah Robbins is an international development practitioner with specialized training in mix methods research for program design and implementation. Her expertise includes qualitative and quantitative analysis techniques, policy research and evaluation with a focus on infectious diseases including HIV/AIDS and malaria. Prior to joining CDA, Sarah provided research support for numerous non-profits and academic institutions on projects addressing HIV behavioral interventions, HIV/HCV co-infection, maternal and child health best practices, and data transparency.

Sarah earned her MSPH degree from the Department of International Health, Social and Behavioral Interventions Program with an additional Certificate in Population Health from Johns Hopkins Bloomberg School of Public Health. She received a Bachelor of Arts degree in International Development and Health Promotion from American University. As a graduate student, Sarah received a Global Health Field Placement award to advocate for public-private partnerships to improve malaria control efforts in Kampala, Uganda. 






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Jonathan Schmelzer

Jonathan is an experienced public health researcher with specialized training in data management and analysis. Prior to joining the Center for Disease Analysis, he spent five years at the Institute of Medicine of the National Academies providing research support on various studies addressing environmental exposures, health outcomes, program evaluation, diagnostic criteria, and treatment guidelines. He has researched several complex diseases with unknown etiologies or effective treatments, mostly in active duty and veteran military populations.

Jonathan holds a Master of Public Health in Epidemiology from George Washington University's Milken Institute School of Public Health and a Bachelor of Arts in Political Science from Miami University. While completing his graduate work, Jonathan interned with the National Institute of Child Health and Human Development where he analyzed data from a cohort study and co-authored an article in the Journal of Nutrition on dietary risk factors for women's reproductive health.