Note: Outbreak data based on CDC reports from 1998 to 2011, including suspected and confirmed outbreaks by food type. Outbreaks were not counted if more than one food type was implicated.

*Irradiation uses gamma rays to kill bacteria. The World Health Organization has endorsed its use. It is not widely used in the U.S. due to consumer concerns about radiation.

SOURCE: CDC’s FOOD Tool, using data from 1998 to 2011; Food and Drug Administration; Michael Doyle, director of the Center for Food Safety at University of Georgia.