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Modeling Variability and Uncertainty in Risk Assessment
Wednesday, June 8, 2016 8:00:00 AM PDT - 9:30:00 AM PDT
Microbial Modelling and Risk Analysis Professional Development Group Presents: Modeling Variability and Uncertainty in Risk Assessment: a Case Study of Salmonella in Low Water Activity Foods and its Use in Decision Making.

The presence, survival and heat resistance of Salmonella in low water activity foods is affected by many factors including environmental, processing and those inherent to the pathogen. The estimated risk of salmonellosis from consumption of these products is influenced by these factors as well as consumption patterns, production volume and population numbers. Variability in the value of each factor affects the risk of illness whereas uncertainty in the knowledge of each factor affects the risk estimate.  

The aim of this webinar is to provide an overview of strategies for incorporating variability and uncertainty in quantitative risk assessment models for Salmonella in low water activity foods and describe the utility of doing so for the decision maker.

The webinar will conclude with a Q & A session.

This webinar is sponsored by the ALM PDG



Dr. Peter Feng

Center for Food Safety and Applied Nutrition, FDA

Research Microbiologist

Dr. Feng 29 years of research expertise on Shiga toxin-producing E. coli (STEC). Dr. Feng is currently the FDA subject matter expert for STEC and assists in outbreak investigations, reviews compliance violation cases and serves as a Federal expert witness in litigations. Dr. Feng is a Fellow of the American Academy of Microbiology, on the Expert Database of the European Food Safety Authority and is Chair of WHO STEC Expert Panel.


Karen Colburn Jinneman

Applied Technology Center (ATC), Pacific Regional Laboratory(PRLNW), FDA, Bothell, WA

Research Microbiologist



Karen's Research focus is in the areas of microbial ecology, method development and bacterial subtyping utilizing molecular biology techniques. The Research is applied towards assisting FDA and FERN in its public health mission and is reflected in the current FDA regulatory methodologies in the areas of Listeria monocytogenes, Enterohemorrhagic E. coli, and Cyclospora. Karen received her Master of Science    Degree from the University of Washington, Seattle, WA and is a member of American Society for Microbiology (ASM).



June Wetherington

FDA Pacific Regional Lab Northwest (PRLNW)

Microbiologist/Food Pathogens Specialist

June's research includes laboratory analysis of domestic and imported food product samples, and environmental samples associated with inspections of food manufacturing facilities. June has a Master of Science degree in Fisheries/Food Science and Technology. University of Washington, Seattle, WA.


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