1.EPIDEMIOLOGY INTRO

1.EPIDEMIOLOGY INTRO

1. study of the distribution of health outcomes or disease within populations and the factors that determine it spread , applied to control of health problems

2. risk factors

   • determine whether someone gets a certain health outcome or disease

3. population level rather than the individual level. most fundamental basic science of public health

4. what is EPI TRANSITION

   • population changing patterns IN:
   • FOUR MAJOR DISEASE TRANSITIONS SINCE THE AGRICULTURAL PERIOD BEGAN.
     • ONE: AGRIC REVOLUTION 10000 y.ago --zoonotics, nutrit def, disease vectors
       • TWO: enhancing of inmune system-->change from epid to endemics
         • THREE: better nutrit-public health-clin med-->change from infect to chronic-degen.
           • FOURTH: globalization(2000)--> reemergence&new infect diseases

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