Dairy products were the most common source of Listeria outbreaks that occurred between 1998 and 2012, according to a new federal study by the Food Safety Analytics Collaboration of the Centers for Disease Control and Prevention (CDC), the U.S. Food and Drug Administration (FDA) and U.S. Department of Agriculture (USDA). The study was conducted to provide information that can be used to develop better food poisoning prevention measures.
Of the 952 outbreaks attributed to one pathogen during the 14-year study period, 24 were Listeria outbreaks. Dairy products were the source of half them. Turkey was the source of four; pork and sprouts each caused two; and beef, chicken, fruit and row crop vegetables each caused one. The fruit outbreak, the cantaloupe Listeria outbreak of 2011, sickened 147 people and killed 35.

