* Foods were classified according to the Interagency Food Safety Analytics Collaboration's (IFSAC) scheme and include the following categories: dairy, eggs, fish, fruits, fungi, game, grains-beans, herbs, meat (e.g. beef, pork), oils/sugars, nuts/seeds, poultry (e.g. chicken, turkey), shellfish (e.g. crustaceans, molluscs), sprouts, vegetables (e.g. root-underground, seeded, vegetable row crops), and other poultry or meat.
† More than one contributing factor categories may be reported.