​ Define the core functions of epidemiology

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Define the core functions of epidemiology. Select one of the epidemiologic core functions and provide an example of the how the core function might be demonstrated in clinical practice by a masters prepared registered nurse. Can you relate this or one of the other functions to an example or content in your text readings?The core functions of epidemiology are public health surveillance, field investigation, analytic studies, evaluation, linkages, and policy development. .