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Master's Degree

Master of Health Science (MHS)

Offered By: Department of Epidemiology

Onsite | Full-Time | 2 years

About the MHS in Epidemiology Program

Ideal for individuals with strong science and mathematics skills who may or may not have research experience, the MHS in Epidemiology is a two-year, intensive academic degree program that focuses on applying epidemiological and biostatistical methods to a variety of current public health issues. Successful applicants are motivated to use advanced quantitative methods to analyze public health information and to use a translational approach to communicate results. Students select and specialize in a research track. Students complete at least 64 credits in epidemiology, biostatistics, and elective courses, pass a written comprehensive exam, produce a high-quality thesis, and present their research during the annual poster symposium. Graduates from the MHS go on to positions in research coordination, government and policy work, consulting or pharmaceutical research, or pursue doctoral degrees after some years of work experience in a variety of fields. 

MHS in Epidemiology Program Highlights

Train with renowned faculty

in the field of epidemiology


as doctoral students


research experience

Participate on research teams

with Bloomberg School faculty

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
  • Data Analyst
  • Health Communications Specialist/Health Educator
  • Laboratory Supervisor
  • Programmer
  • Research Coordinator

Curriculum for the MHS in Epidemiology

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

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

Research Tracks

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

Cancer Epidemiology

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 Disease and Clinical Epidemiology

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

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

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

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

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

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

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

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.

Tuition and Funding

The Master’s Tuition Scholarship is available to students in good academic standing in a two-year, full-time master’s program. The MTS is a 75% reduction in tuition for year two of an eight-term program. Students have the option of distributing the scholarship entirely in their second year of study or receive a 25% reduction in tuition their first year and 50% in their second year.

Contact Us

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

General Inquiries:

Academic Program Manager
Justin Switzer