CDC: Seasonal Influenza (Flu) About this site: Learn about the different types of flu, ways to prevent infection, vaccine guidelines, and treatment options from the Centers for Disease Control, which offers the most complete information on the subject. (http://www.cdc.gov/flu)   Pluses: Stay up-to-date with RSS feeds, podcasts, e-mail alerts, and text messages to your mobile phone.   Minuses: The search function doesn’t always find what you want.   Best feature: Find out if there is a flu outbreak in your neighborhood with the CDC's Weekly Surveillance Report.

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