Epidemiology is a core science in public health that includes surveillance, observation, hypothesis testing, analytic research, and experiments and interventions. As the fundamental science of preventive medicine and public health, epidemiology has traditionally focused on disease causation through population studies. Epidemiologists develop and evaluate hypotheses about the effects of genetic, behavioral, environmental, and healthcare factors on human health and develop the knowledge bases for disease prevention and control programs. The field is interdisciplinary and has a methodology distinct from, but dependent on, biostatistics. Epidemiologists incorporate into their research the knowledge base and tools of other disciplines including the biologic sciences, clinical research, and other population sciences.
Main Areas of Focus
While our primary efforts focus on leading research relating to different aspects of infectious disease epidemiology and public health, epidemiologists at NIAID support research of relevance to the mission of NIAID, with approaches that include the following:
- Design of clinical and population-based studies with appropriate methods and sampling strategies, focusing on reducing study bias and improving data collection
- Analysis of randomized and non-randomized study cohorts using multivariable methods to identify host and pathogen contributions to infection and disease
- Application of machine learning and other data science tools to study disease risk factors for selected infectious diseases and immune disorders
- Molecular techniques to investigate immunological responses to emerging and re-emerging viral diseases
- Research areas of particular interest include emerging viral pathogens, antimicrobial resistance, nontuberculous mycobacteria, malaria, SARS-CoV-2, Ebola, invasive fungal infections, inborn errors of immunity
Leah Katzelnick, Ph.D, M.P.H. – Seroepidemiology
Jennifer Kwan, Ph.D. – Infectious disease epidemiology, geospatial statistics
Rebecca Prevots, Ph.D. – Epidemiology of nontuberculous mycobacteria
Emily Ricotta, Ph.D., M.Sc. – Infectious disease epidemiology, data management
Infectious Diseases Clinical Fellowship Second and Third Years
Infectious Diseases Clinical Fellowship First Year
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See the list of NIAID clinical trials that are recruiting in the United States below or view the complete list of NIAID studies clinical studies on ClinicalTrials.gov.
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NIAID supports research to understand, diagnose, and treat many of the world’s most intractable and widespread diseases. Explore NIAID research through the diseases and conditions as well as the cross-cutting disciplines and approaches below.
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Participant Testimonials
At NIAID, the relationship between scientists, clinicians, and volunteers from the community is considered a partnership and collaboration. The people who volunteer to participate in clinical trials are extraordinary individuals who graciously volunteer their time and work closely with us to find solutions for global health challenges. Below are a few of the volunteers who have participated in NIAID research studies.
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Healthy Volunteers: Healthy volunteers are people with no known significant health problems. See a list of all trials that are seeking healthy volunteers.
More Trials: Not all NIAID clinical trials are listed here. You may find more trials at ClinicalTrials.gov
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NIAID participates in or funds many different consortia, clinical trial programs, networks, and research collaborations that help to move science forward. These are listed here, with new ones added all the time. Use the Search for Programs or Networks field to narrow your search.