Introduction to Epidemiology – West Africa, starts with a definition of epidemiology, introduces the history of modern epidemiology, and provides examples of the uses and applications of epidemiology. Measurement of morbidity and mortality, and a summary of the different types of study designs and their strengths and limitations. An introduction to statistical methods sets the scene for understanding basic concepts and available tools for analyzing data and evaluating the impact of interventions. A fundamental task of epidemiologists is to understand the process of making causal judgements. The applications of epidemiology to broad areas of public health including chronic non-communicable disease, communicable disease epidemiology, and disease surveillance are also outlined in this course.