Introduction to Epidemiology

Epidemiology is the “study of distribution and determinants of health-related states among specified populations and the application of that study to the control of health problems.” — A Dictionary of Epidemiology

These materials provide an overview of epidemiology investigations, methods, and data collection.



  • Key concepts and terms
  • Calculating rates
  • Approach and methodology
  • Data sources and study design

Available Materials

Slide Presentation

Cover slide for Introduction to Epidemiology presentation

These slide sets are in the public domain and may be downloaded and customized as needed by the user for informational or educational purposes. Permission from the Centers for Disease Control and Prevention is not required, but citation of the source is appreciated.

Suggested Citation:

Centers for Disease Control and Prevention (CDC). Introduction to Public Health. In: Public Health 101 Series. Atlanta, GA: U.S. Department of Health and Human Services, CDC; 2014. Available at:

E-learning Course

Introduction to Epidemiology e-learning graphic

These are links to self-study e-learning courses on this topic.


Quick-Learn Lessons take 20 minutes or less to complete. Lessons are also accessible from mobile devices.