The analysis to develop the report involved a method developed by IFSAC to estimate foodborne illness source attribution (see our blog on IFSAC research on how to categorize foods linked to foodborne disease outbreaks). IFSAC includes the Centers for Disease Control and Prevention (CDC), the U.S. Food and Drug Administration (FDA), and the U.S. Department of Agriculture’s Food Safety and Inspection Service (USDA-FSIS).

Each year in the United States, foodborne disease caused by known pathogens results in an estimated 9 million people becoming sick, 56,000 hospitalizations, and 1,300 deaths, according to the report. The pathogens in the report were chosen because of the frequency or severity of the illnesses they cause. CDC estimates that, combined, the four pathogens cause 1.9 million foodborne illnesses in the United States each year. The four pathogens also were selected because targeted interventions can have a major impact in reducing foodborne illness caused by these pathogens.