improve how foods are categorized into commodities dana cole, dvm, phd enteric diseases epidemiology...
TRANSCRIPT
Improve how foods are categorized into commodities
Dana Cole, DVM, PhD
Enteric Diseases Epidemiology Branch
January 31, 2012
Improve How Foods are Grouped into Commodities
Overview
Background PurposeProject DescriptionDeliverablesTimeline
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CDC uses data in outbreak investigation reports submitted by local and state public health agencies to identify the implicated food commodities
CDC publishes annual summaries of foodborne outbreaks For outbreaks associated with “simple foods,” CDC
provides the number of outbreaks and illnesses associated with each one of 17 food commodities
Background
Improve How Foods are Grouped into Commodities
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Current Scheme for GroupingFoods Into Commodities
Represent 17 individual commodities
Commodity groups
All Food
Painter et al, J Food Protection 2009 4
Simple foods: reported foods that can be grouped into only one commodity
‘Green salad’ with ‘spinach,’ ‘tomatoes,’ and ‘carrots’ but contaminated ingredient is ‘spinach’ Leafy Green
‘Steak’ Beef ‘Fruit salad’ Fruits-nuts
Complex foods: reported foods that can be grouped into more than one commodity
‘Lasagna’ with ‘tomatoes,’ ‘noodles,’ ‘egg,’ and ‘beef’ Vine-stalk, Grains-beans, Egg, Beef
‘Chow Mein with green salad’ Grains-beans, Pork, Vine-Stalk, Leafy Greens, Oils-Sugars
Background
Source Attribution Definitions
Improve How Foods are Grouped into Commodities
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Improve How Foods are Grouped into Commodities
Purpose
Improve the accuracy of source attribution estimates derived from outbreak dataCategorize foods into commodity groups that are useful to regulatory agencies for decision-making
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Improve How Foods Grouped into Commodities
Project Description
Determine changes needed by FDA and FSIS for decision-makingDevelop an electronic search tool to find the implicated food in the reportImprove the utility of outbreak-based source attribution for FDA and FSIS decision-making
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Improve How Foods are Grouped into Commodities
Project Description
Free Text Field(>1800 Foods Reported)
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Improving How Foods are Grouped into Commodities
Project Description
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Improve How Foods are Grouped into Commodities
Improve How Foods are Grouped into Commodities
How Algorithm will Search for Reported Foods
Example Decision Tree
Example of Potential Changes to Hierarchy
Improve How Foods are Grouped into Commodities
Deliverables
Improved method to identify each food in outbreak report Commodity categories useful to FSIS and FDA decision-makingNew methods to re-classify foods in outbreaks reported since 2009, then apply these to data from earlier years
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Improve How Foods are Grouped into Commodities
Timeline
Project plan approved in Spring 2011Method and results currently under review by project teamImprovements will be applied to data reported since 2009 by February 2012Project will meet IFSAC short-term need to increase the accuracy and utility of food commodity assignments used to generate illness attribution estimates reflecting FDA and FSIS’ regulatory perspectives on food
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Thank You
1600 Clifton Road NE, Atlanta, GA 30333Telephone: 1-800-CDC-INFO (232-4636)/TTY: 1-888-232-6348E-mail: [email protected] Web: http://www.cdc.gov
The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.