Outbreak Investigation Reports provide an overview of factors contributing to contamination in foodborne outbreaks. These reports summarize the outbreak and investigation and provide conclusions and recommendations to assist in future prevention efforts.

Each report contains three main sections:

• Reason for the Investigation
• Investigation Results
• Requirements and/or Recommendations

Food safety is a shared responsibility that involves food producers, distributors, manufacturers, retailers, and regulators. FDA is committed to working with these stakeholders to advance this critical work.

Report

• Factors Potentially Contributing to the Contamination of Cantaloupe Implicated in the Outbreak of Salmonella Typhimurium During the Summer of 2022 April 2023

• Factors Potentially Contributing to the Contamination of Packaged Leafy Greens Implicated in the Outbreak of Salmonella Typhimurium During the Summer of 2021 January 2022

• Factors Potentially Contributing to the Contamination of Peaches Implicated in the Summer 2020 Outbreak of Salmonella Enteritidis June 2021 

• Factors Potentially Contributing to the Contamination of Red Onions Implicated in the Summer 2020 Outbreak of Salmonella Newport May 2021 

• Factors Potentially Contributing to the Contamination of Leafy Greens Implicated in the Fall 2020 Outbreak of E. coli O157:H7 April 2021

• Factors Potentially Contributing to the Contamination of Romaine Lettuce Implicated in a Multi-State Outbreak of E. coli O157:H7 November 2018

• Memorandum to the File on the Environmental Assessment 

• Environmental Assessment: 2013 Cyclosporiasis outbreak in Iowa and Nebraska – Findings and Recommendations November 2013

• Factors Potentially Contributing to the Contamination of Fresh Whole Cantaloupe Implicated in a Multi-State Outbreak of Salmonellosis February 2013

• Factors Potentially Contributing to the Contamination of Fresh Whole Cantaloupe Implicated in a Multi-State Outbreak of Listeriosis October 2011

• Non-O157 Shiga Toxin-Producing E. coli (STEC) Environmental Assessment – Findings and Potential Preventive Control Strategies December 2010
  This assessment was performed to determine how romaine lettuce implicated in a 2010 E. coli O145 outbreak may have become contaminated with the pathogen.