Six Tips for Avoiding the Spread of Flu

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Centers for Disease Control and Prevention. (2004b). Influenza (Flu): Clinical description and diagnosis. Retrieved July 7, 2004. from http://www.cdc.gov/flu/professionals/diagnosis/index.htm

Centers for Disease Control and Prevention. (2004c). Influenza: The disease. Retrieved July 7 . 2004, from http://www.cdc.gov/flu/about/disease.htm