Differentiating Epidemic from Endemic or Sporadic Infectious Disease Occurrence.

  title={Differentiating Epidemic from Endemic or Sporadic Infectious Disease Occurrence.},
  author={Lee W. Riley},
  journal={Microbiology spectrum},
  volume={7 4}
  • L. Riley
  • Published 19 July 2019
  • Medicine
  • Microbiology spectrum
One important scope of work of epidemiology is the investigation of infectious diseases that cluster in time and place. Clusters of infectious disease may represent outbreaks or epidemics in which the cases share in common a point source exposure or an infectious agent in a chain of transmission pathways. Investigations of outbreaks of an illness can facilitate identification of a source, risk, or cause of the illness. However, most infectious disease episodes occur not as part of any apparent… 
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  • Biology, Medicine
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