8 Principles of Epidemiology in Public Health Practice Third Edition>SELF-STUDY

y in Public Health Practice Third Edition An Introduction to Applied Epidemiology and Biostatistics October 2006 Updated May 2012 U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Preve ...

y in Public Health Practice Third Edition An Introduction to Applied Epidemiology and Biostatistics October 2006 Updated May 2012 U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention (CDC) Office of Workforce and Career Development Atlanta, GA 30333 Introduction Page ii CONTENTS Acknowledgments................................................................................................................v Introduction ...................................................................................................................... viii Lesson One: Introduction to Epidemiology Lesson Introduction ......................................................................................................... 1-1 Lesson Objectives ............................................................................................................ 1-1 Major Sections Definition of Epidemiology ....................................................................................... 1-2 Historical Evolution of Epidemiology ....................................................................... 1-7 Uses .......................................................................................................................... 1-12 Core Epidemiologic Functions ................................................................................ 1-15 The Epidemiologic Approach .................................................................................. 1-21 Descriptive Epidemiology ....................................................................................... 1-31 Analytic Epidemiology ............................................................................................ 1-46 Concepts of Disease Occurrence ............................................................................. 1-52 Natural History and Spectrum of Disease ................................................................ 1-59 Chain of Infection .................................................................................................... 1-62 Epidemic Disease Occurrence ............................................................................