In this course, the dynamics of health/ill health in populations will be studied systematically and analytically. The emphasis will be on basic epidemiologic concepts and the principal approach to the study of diseases in populations. These will be followed by appropriate case examples. The goal is to introduce the student to the basic concepts and methodologies of importance in Epidemiology and to emphasize the use of analytic methods, animal health economics and computer simulation and modeling techniques in solving epidemiologic problems. The use of the Internet to access epidemiologic information and as a tool for communication will serve as an under girding for this course. The fuller use of information technology in advancing epidemiologic studies will be emphasized.