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Epidemiology and Public Health Introduction, Part I PowerPoint PPT Presentation


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Epidemiology and Public Health Introduction, Part I. DEFINITIONS. What is epidemiology? What is an epidemiologist?.

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Epidemiology and Public Health Introduction, Part I

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Epidemiology and public health introduction part i l.jpg

Epidemiology and Public HealthIntroduction, Part I


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DEFINITIONS

  • What is epidemiology?

  • What is an epidemiologist?


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EPIDEMIOLOGY is the study of the nature, cause, control and determinants of the frequency and distribution of disease, disability, and death in human populations.Epidemiology:the study of factors influencing the occurence, transmission, distribution, prevention and control of disease in a defined population


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An EPIDEMIOLOGIST is a public health scientist, who is responsible for carrying out all useful and effective activities needed for successful epidemiology practice


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Methods of Epidemiology

  • Public Health Surveillance

  • Disease Investigation

  • Analytic Studies

  • Program Evaluation


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Terminology

  • Endemic

  • Hyperendemic

  • Holoendemic

  • Epidemic

  • Pandemic

  • Epizootic

  • Incidence

  • Prevalence

Terms used for reference

to various forms of

outbreaks


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Endemic:a disease or pathogen present or usually prevalent in a given population or geographic region at all times

Hyperendemic:equally endemicin all age groups of a population

Holoendemic:endemicin most of the children in a population, with the adults in the same population being less often affected

Epidemic:a disease occuring suddenly in numbers far exceeding those attributable to endemic disease; occuring suddenly in numbers clearly in access of normal expectancy

Pandemic:a widespread epidemic distributed or occuring widely throughout a region, country, continent, or globally

Epizootic:of, or related to a rapidly spreading and widely diffused disease affecting large numbers of animals in a given region


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Incidence:rate of occurrence of an event; number of new cases of disease occuring over a specified period of time; may be expressed per a known population size

Prevalence:number of cases of disease occurring within a population at any one given point in time


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Terms Associated with Disease Causation, etc.

  • Host

  • Agent

  • Environment

  • Fomites

  • Vector

  • Carrier – active

  • Incubatory

  • Convalescent

  • Healthy

  • Intermittent

Your Assignment:

Define these terms


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