FSIS investigates outbreaks of foodborne illness in collaboration with public health partners, including the Centers for Disease Control and Prevention (CDC), the U.S. Food and Drug Administration (FDA), USDA’s Animal and Plant Health Inspection Service (APHIS), and state and local health and agriculture departments.

Foodborne illness investigations are multi-faceted, multidisciplinary undertakings that involve collecting and analyzing data from a variety of sources. Epidemiologic, laboratory, and environmental evidence help guide the short-term response and long-term preventive actions of public health organizations working to minimize or prevent further exposure.

Outbreak Investigation Annual Reports

The annual outbreak reports summarize information about outbreaks investigated during each Fiscal Year, including the number of outbreaks, pathogens, products, illnesses, and how many outbreaks resulted in a product recall.

• FY2023 Annual Report
• FY2022 Annual Report
• FY2021 Annual Report
• FY2020 Annual Report
• FY2019 Annual Report
• FY2018 Annual Report
• FY2017 Annual Report

Additional Resources

• FSIS Foodborne Illness Outbreak Investigations Overview

• FSIS Directive 8080.3, Foodborne Illness Investigations

• CDC Food Safety Outbreaks page
• FDA Outbreaks & Foodborne Illness page
• APHIS One Health collaboration page