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PhD in Population Health Sciences

Prepare for a high-impact career tackling public health problems from air pollution to obesity to global health equity to the social determinants of health.

The PhD in population health sciences is a multidisciplinary research degree that will prepare you for a career focused on challenges and solutions that affect the lives of millions around the globe. Collaborating with colleagues from diverse personal and professional backgrounds and conducting field and/or laboratory research projects of your own design, you will gain the deep expertise and powerful analytical and quantitative tools needed to tackle a wide range of complex, large-scale public health problems.

Focusing on one of five complementary fields of study at the Harvard T.H. Chan School of Public Health and drawing on courses, resources, and faculty from the Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, you will become well-versed in a wide variety of disciplines while gaining specialized knowledge in your chosen area of study.

As a population health sciences graduate, you will be prepared for a career in research, academics, or practice, tackling complex diseases and health problems that affect entire populations. Those interested in pursuing research may go on to work at a government agency or international organization, or in the private sector at a consulting, biotech, or pharmaceutical firm. Others may choose to pursue practice or on-the-ground interventions. Those interested in academics may become a faculty member in a college, university, medical school, research institute, or school of public health.

The PhD in population health sciences is a four-year program based at the Harvard T.H. Chan School of Public Health in the world-renowned Longwood Medical Area of Boston, Massachusetts. The degree will prepare you to apply diverse approaches to solving difficult public health research issues in your choice of one of five primary fields of study:

  • Environmental health
  • Epidemiology
  • Social and behavioral sciences
  • Global health and population

In your first semester, you and your faculty adviser will design a degree plan to guide you through the program’s interdisciplinary requirements and core courses, as well as those in your chosen field of study. After successfully completing the preliminary qualifying examination, usually at the end of your second year, you will finalize your general research topics and identify a dissertation adviser who will mentor you through the dissertation process and help you nominate a dissertation advisory committee.

All population health sciences students are trained in pedagogy and teaching and are required to work as a teaching fellow and/or research assistant to ensure they gain meaningful teaching and research experience before graduation. Students also attend a special weekly evening seminar that features prominent lecturers, grant-writing modules, feedback dinners, and training opportunities.

All students, including international students, who maintain satisfactory progress (B+ or above) receive a multiyear funding package, which includes tuition, fees , and a competitive stipend.

WHO SHOULD APPLY?

Anyone with a distinguished undergraduate record and a demonstrated enthusiasm for the rigorous pursuit of scientific public health knowledge is encouraged to apply. Although a previous graduate degree is not required, applicants should have successfully completed coursework in introductory statistics or quantitative methods. Preference will be given to applicants who have either some relevant work experience or graduate-level work in their desired primary field of study.

APPLICATION PROCESS

Like all PhD (doctor of philosophy) programs at the School, the PhD in population health sciences is offered under the aegis of the Harvard Kenneth C. Griffin Graduate School of Arts and Sciences (Harvard Griffin GSAS). Applications are processed through the Harvard Griffin GSAS online application system located at gsas.harvard.edu/admissions/apply.

OUR COMMUNITY: COMMITTED, ACCOMPLISHED, COLLABORATIVE

As a PhD in population health sciences candidate, you will be part of a diverse and accomplished group of students with a broad range of research and other interests. The opportunity to learn from each other and to share ideas both inside and outside the classroom will be one of the most rewarding and productive parts of the program for any successful candidate. The program in population health sciences provides these opportunities by sponsoring an informal curriculum of seminars, a dedicated student gathering and study area, and events that will enhance your knowledge, foster interaction with your peers, and encourage you to cooperatively evaluate scientific literature, while providing a supportive, collaborative community within which to pursue your degree.

As members of both the Harvard T.H. Chan School of Public Health and the Harvard Kenneth C. Griffin Graduate School of Arts and Sciences communities, students have access to the Cambridge and Longwood Medical Area campuses. Students also qualify for affordable transportation options, access to numerous lectures and academic seminars, and a wealth of services to support their academic and personal needs on both sides of the Charles River.

LEARN MORE Population Health Sciences Harvard T.H. Chan School of Public Health www.hsph.harvard.edu/phdphs

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Doctor of Philosophy (PhD)

Offered By: Department of Epidemiology

Onsite | Full-Time | 4 years

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About the PhD in Epidemiology Program

The doctoral program in Epidemiology is anchored in public health and population research and analysis. Students approach research using epidemiologic methods to understand complex human health problems. The PhD requires two years of coursework followed by two (or more) years of research. Students are required to complete a teaching training curriculum and serve as a teaching assistant for methods and topical courses. Additionally, students must complete a written comprehensive exam, a practice oral exam, a preliminary exam, multiple oral and poster presentations, and a final dissertation including presentation and defense.

PhD in Epidemiology Program Highlights

Train with renowned faculty.

100+ faculty across 8 research tracks in epidemiology

Access to wide range of coursework

Explore your interests with a wide variety of courses taught by our faculty

Write and publish

All of our doctoral students get training in writing papers and proposals through didactic learning and mentoring

Participate on research teams

The School is the leading recipient of NIH research funding among U.S. schools of public health, providing robust hands-on research opportunities

What Can You Do With a Graduate Degree In Epidemiology?

Visit the  Graduate Employment Outcomes Dashboard to learn about Bloomberg School graduates' employment status, sector, and salaries.

Sample Careers

  • Epidemiologist
  • Faculty Member
  • Science Director
  • Health Commissioner

Curriculum for the PhD in Epidemiology

Browse an overview of the requirements for this doctoral program in the JHU Academic Catalogue and explore all course offerings in the Bloomberg School Course Directory .

Current students can view the PhD in Epidemiology requirements in the student handbook on the Epidemiology portal site.

Research Tracks

The Department's current research tracks in the PhD program include:

Cancer Epidemiology offers a rich, vibrant and dynamic environment for masters and doctoral students, and postdoctoral fellows to actively participate, learn, explore and conduct cancer-related population-based and clinical research. The track has a long and successful history of training masters and doctoral students and postdoctoral fellows. Past students continue to conduct population-based cancer research and have made successful transitions to positions in academia, government and private sector organizations.

Cardiovascular and Clinical Epidemiology focuses on the use of epidemiologic methods in clinical research and practice as well as interdisciplinary training on the epidemiology of cardiovascular disease. The program integrates knowledge on all aspects of the disease: biology, behavior, treatment, and prevention. Training emphasizes active participation in research and translational epidemiology using a collaborative approach, which is enhanced by the close relationships between the Department of Epidemiology and clinical departments of the Johns Hopkins School of Medicine at the Johns Hopkins Hospital.

Clinical Trials and Evidence Synthesis offers students a unique educational experience in clinical trial and evidence synthesis methodology. Methods are applied to a variety of clinical areas including respiratory-, eye- and infectious diseases, and mental health. Student-faculty discussions, journal clubs, research-in-progress meetings, seminars and active participation in research add to both the depth and breadth of the program.

Environmental Epidemiology concentrates on the impact of environmental exposures on health and disease states in human populations. This track integrates epidemiological methods, assessment of environmental exposures and understanding of specific disease processes to identify the health consequences of environmental exposures. Environmental Epidemiology provides basic information for risk assessment, risk communication, and environmental health policy decisions and has a central role in identifying, implementing and evaluating strategies for the prevention and control of environmental exposures. Training in Environmental Epidemiology emphasizes active participation in large population research projects, with close collaborations across the School and with national and international collaborators.

Epidemiology of Aging focuses on the determinants of physical and cognitive health, disease, and function in older adults. Offers multidisciplinary training in methods and theories needed for the study of older populations. Strong ties exist with several multi-departmental training grants and programs. This training program also is connected to numerous large research projects.

General Epidemiology and Methodology offers research and training opportunities in almost all areas of chronic disease epidemiology, including cardiovascular diseases, cancer and diseases of childhood and includes advanced methodology training in epidemiologic methods as well as providing individualized or customized training in statistical epidemiology, pharmacoepidemiology and social epidemiology.

Genetic Epidemiology focuses on the study of genetic and environmental factors, and their interaction in disease and normal variation. Emphasis is on understanding the methodology and approach to designing, executing and analyzing genetic studies. Training is broad-based and collaborative and encourages participation in research from faculty in the Johns Hopkins Bloomberg School of Public Health, the Institute of Genetic Medicine, and the School of Medicine.

Infectious Disease Epidemiology provides training in the fundamentals of infectious disease epidemiology with an eye toward preparing graduates to work in teaching, research and practice. The program emphasizes principles and methods that can be used to understand the dynamics and control of transmissible diseases by all classes of organisms. The curriculum builds on the faculty's extensive and diverse experience researching and combating infectious diseases, ranging from hospital acquired infections, to neglected tropical diseases and sexually transmitted infections.

Admissions Requirements

For general admissions requirements, please visit the How to Apply page. This specific program also requires:

Prior Coursework

College-level math through pre-calculus, a biology course, and one additional science course

Prior Graduate Degree

Not required, but highly recommended

Prior Work Experience

One year of full-time work experience in a related field

Standardized Test Scores

Standardized test scores are  not required and not reviewed  for this program. If you have taken a standardized test such as the GRE, GMAT, or MCAT and want to submit your scores, please note that they will not be used as a metric during the application review.  Applications will be reviewed holistically based on all required application components.

Per the Collective Bargaining Agreement (CBA) with the JHU PhD Union, the minimum guaranteed 2025-2026 academic year stipend is $50,000 for all PhD students with a 4% increase the following year. Tuition, fees, and medical benefits are provided, including health insurance premiums for PhD student’s children and spouses of international students, depending on visa type. The minimum stipend and tuition coverage is guaranteed for at least the first four years of a BSPH PhD program; specific amounts and the number of years supported, as well as work expectations related to that stipend will vary across departments and funding source. Please refer to the  CBA to review specific benefits, compensation, and other terms. Need-Based Relocation Grants Students who  are admitted to PhD programs at JHU   starting in Fall 2023 or beyond can apply to receive a need-based grant to offset the costs of relocating to be able to attend JHU.   These grants provide funding to a portion of incoming students who, without this money, may otherwise not be able to afford to relocate to JHU for their PhD program. This is not a merit-based grant. Applications will be evaluated solely based on financial need.  View more information about the need-based relocation grants for PhD students .

Questions about the program? We're happy to help.

General Inquiries:

[email protected]

Senior Academic Program Manager Frances S. Burman [email protected]

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