This course introduces students to basic concepts and methods of epidemiology and population health. In this course, students learn how to measure disease incidence, prevalence, risk, relative risk, and related concepts. Students also learn how to design, analyze and interpret studies that deploy methodologies ranging from case-control, cohort and randomized control trials. Problems that plague such studies are explored including attrition, censoring, biased sampling, model misspecification, and confounding variables. We will also learn about methods of epidemiologic surveillance described along with important sources of data. Finally, we will look at the COVID-19 pandemic and discuss how epidemiology was involved in the global public health response.