Influenza Prevention and Control About this site: Learn about the different types of flu, ways to prevent infection, and various treatment options from the Centers for Disease Control, which offers the most complete information about flu vaccines and antiviral drugs on the Web. (http://www.cdc.gov/ncidod/diseases/flu/fluvirus.htm) Pluses: Vaccine guidelines for pregnant and lactating women. Minuses: Little information on over-the-counter remedies for treating flu symptoms. Best feature: Find out if there is a flu outbreak in your neighborhood with the CDC's Weekly Surveillance Report.