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EPI Notes

An overview of epidemiology, its definition, key concepts like disease distribution and determinants, practical applications, and historical roots tracing back to Hippocrates.

Alice Edwards
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Chapter 1:What is epidemiology?The study of the distribution and determinants of disease frequency in human populations. (1970)The study of the distribution and determinants of health-related states or events in specified populations,and the application of this study to the control of health problems.Disease Distribution and DeterminantsDisease distribution:frequency and pattern of health events in a populationDeterminants:Any factor (event, characteristic, or other definable entity) that brings about a change in a healthcondition.What is Epidemiology? ApplicationApplying the knowledge gained by the studies to control the health problems.• Cancer screening• Health education• Health promotionHistory and Evolution of EpidemiologyEpi= on or upondemi=peopleology= the study of; body of knowledgeLiterally meaning "the study of what is upon the people"History and Evolution of Epidemiology- Hippocrates:Hippocrates:• The father of medicine and the first epidemiologist.• Describes the distinction between " epidemic " and "endemic";endemic —> epidemic—> epidemiologyHistory and Evolution of Epidemiology• In the early time, some described epidemiology as the study of epidemics- An epidemic occurs when there are significantly more cases of the same disease than past experiencewould have predicted.Epidemiologic Triad for infectious diseaseHostAgentEnvironmentPublic Health

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