A Risk Sciences International Case Study

Risk Assessment of the Impact of Lethality Standards on Salmonellosis from Ready-to-Eat (RTE) Meat and Poultry Products

Ready to eat food

Client: Food Safety and Inspection Service (FSIS), U.S. Department of Agriculture

Listing of the client in no way affirms the client's support, sponsorship, or validation in any form of Risk Sciences International or the RSI staff member(s) who conducted this project during their stay with RSI or prior to joining the company. This case study is displayed for informative purposes only to demonstrate the capacity of RSI staff members. This case study reveals no proprietary information or information deemed sensitive.

Project description:

Risk Assessment of the Impact of Lethality Standards on Salmonellosis from Ready-to-Eat (RTE) Meat and Poultry Products

To support regulatory decision-making, a comprehensive risk assessment was conducted to evaluate how varying lethality performance standards would impact the public health burden of salmonellosis associated with Ready-to-Eat (RTE) meat and poultry products. The primary objective was to quantify the expected number of cases of illness under different reductions in Salmonella presence across a broad spectrum of RTE product categories.

The assessment focused on modeling the survival of Salmonella spp. from raw material contamination through lethality treatments, incorporating factors such as compliance with standards, thermal process safety margins, pathogen growth during storage, and the extent of consumer reheating. A decision-support model was developed using Analytica® software to simulate the full exposure pathway and estimate illness probabilities per serving and per million kilograms of product.

The model provided estimates under multiple scenarios that varied the intensity of lethality requirements across product categories. Each scenario’s public health implications were analyzed to inform the potential benefits of more stringent standards. The findings offered a quantitative foundation for policy evaluation, highlighting trade-offs between regulatory stringency and projected illness reduction.

Start: 2003

End: 2005

Experts related to this case study

Greg Paoli

CEO, Principal Risk Scientist

Greg Paoli is the CEO and Principal Risk Scientist at Risk Sciences International (RSI), a firm he co-founded in 2006 following the integration of his earlier consultancy, Decisionalysis Risk Consultants, with the consulting activities of the McLaughlin Centre for Population...
Read More about Greg Paoli

Emma Hartnett

Vice-President Risk Modelling and Simulation

Dr. Emma Hartnett is Vice-President, Risk Modelling and Simulation at Risk Sciences International (RSI), where she has been a foundational member since its inception in 2006. A globally recognized authority in quantitative risk assessment (QRA), she specializes in developing risk...
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