Two discussion board questions related to public health

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Please Read the article I attached below, then answer the following question:

Varney and Hirshon (In the article below) list seven general rationales for providing ED-based public health surveillance. Surveillance is a critical form of communication for public health officials. Choose a real public health outbreak, disaster, or crisis. Provide one example of how any of the concepts described in this paper were actually used to improve public health. Describe the intervention for other classmates. Cite your reference (In APA format).

– At least three paragraphs