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Epidemic

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In epidemiology , an epidemic (frae Greek ?π? epi "upon or abuin" an δ?μο? demos "fowk") occurs when new cases o a certain disease , in a gien human population, an during a gien period, substantially exceed what is expectit based on recent experience. [1] [2]

References [ eedit | eedit soorce ]

  1. Principles of Epidemiology, Third Edition (PDF) . Atlanta, Georgia: Centers for Disease Control and Prevention . 2012.
  2. Green MS, Swartz T, Mayshar E, Lev B, Leventhal A, Slater PE, Shemer J (Januar 2002). "When is an epidemic an epidemic?" (PDF) . Isr. Med. Assoc. J . 4 (1): 3?6. PMID   11802306 . Archived (PDF) frae the original on 24 Julie 2012 . Retrieved 4 September 2014 . CS1 maint: multiple names: authors leet ( link )