Epidemiology

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Epidemiology

  1. 1. GOOD MORNING
  2. 2. EPIDEMOLOGICAL TRIAD
  3. 3. <ul><li>The occurrence and manifestation of any disease whether communicable or non communicable are determined by the interactions between the AGENT , the HOST and the ENVIRONMENT which together constitute the EPIDEMIOLOGICAL TRIAD </li></ul>
  4. 4. THE AGENT
  5. 5. DEFINITION <ul><li>Defined ‘as an organism, a substance or a force, the presence or lack of which may initiate a disease process or may cause it to continue.’ </li></ul>
  6. 6. CLASSIFICATION <ul><li>LIVING OR BIOLOGICAL AGENTS </li></ul><ul><ul><li>BACTERIA </li></ul></ul><ul><ul><li>VIRUS </li></ul></ul><ul><ul><li>FUNGI </li></ul></ul>

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