Risk Mapping and Listeria monocytogenes Transfer in Retail
![Risk Mapping and Listeria monocytogenes Transfer in Retail Delis Karin Hoelzer, Ph. D FDA Risk Mapping and Listeria monocytogenes Transfer in Retail Delis Karin Hoelzer, Ph. D FDA](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-1.jpg)
![Goal: Leverage knowledge to prevent cross - contamination Today’s presentation addresses 4 questions: 1. Goal: Leverage knowledge to prevent cross - contamination Today’s presentation addresses 4 questions: 1.](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-2.jpg)
![Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-3.jpg)
![Introduction: Listeriosis is a very serious clinical disease The clinical symptoms: - Gastroenteritis - Introduction: Listeriosis is a very serious clinical disease The clinical symptoms: - Gastroenteritis -](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-4.jpg)
![Introduction: Cross-contamination at retail is a concern FSIS risk assessment of L. monocytogenes in Introduction: Cross-contamination at retail is a concern FSIS risk assessment of L. monocytogenes in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-5.jpg)
![Introduction: Listeria is common in the retail environment Cross-sectional survey of L. monocytogenes in Introduction: Listeria is common in the retail environment Cross-sectional survey of L. monocytogenes in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-6.jpg)
![Likelihood of occurrence Introduction: Risk maps analyze risks & can guide actions Medium/low risk Likelihood of occurrence Introduction: Risk maps analyze risks & can guide actions Medium/low risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-7.jpg)
![Prevalence of contamination Introduction: A risk map is useful to focus interventions Medium/low risk Prevalence of contamination Introduction: A risk map is useful to focus interventions Medium/low risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-8.jpg)
![Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-9.jpg)
![Risk mapping: Site selection requires stakeholder input Sites & transfer events included in risk Risk mapping: Site selection requires stakeholder input Sites & transfer events included in risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-10.jpg)
![Expert elicitation: Responses differed, but not by employer Study design: • ‘Delphi’ method • Expert elicitation: Responses differed, but not by employer Study design: • ‘Delphi’ method •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-11.jpg)
![Expert elicitation: Hands as cross-contamination vehicles Source: Hoelzer et al. 2012; Risk Analysis 32 Expert elicitation: Hands as cross-contamination vehicles Source: Hoelzer et al. 2012; Risk Analysis 32](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-12.jpg)
![Expert elicitation: Transfer from FCS to product most likely Source: Hoelzer et al. 2012; Expert elicitation: Transfer from FCS to product most likely Source: Hoelzer et al. 2012;](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-13.jpg)
![Expert elicitation: Transfer from hand-touch surfaces likely Source: Hoelzer et al. 2012; Risk Analysis Expert elicitation: Transfer from hand-touch surfaces likely Source: Hoelzer et al. 2012; Risk Analysis](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-14.jpg)
![Likelihood of occurrence Risk mapping: Risk maps analyze risks & can guide actions Medium/low Likelihood of occurrence Risk mapping: Risk maps analyze risks & can guide actions Medium/low](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-15.jpg)
![L. monocytogenes prevalence (i. e. , 'Likelihood') Risk mapping: FCS’s are the sites of L. monocytogenes prevalence (i. e. , 'Likelihood') Risk mapping: FCS’s are the sites of](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-16.jpg)
![Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-17.jpg)
![Transfer coefficients: Transfer efficacy is highly variable Transfer coefficient findings: • • • Some Transfer coefficients: Transfer efficacy is highly variable Transfer coefficient findings: • • • Some](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-18.jpg)
![Transfers during slicing: Contamination can be widespread Source: Hoelzer et al. 2012; IJFM 157: Transfers during slicing: Contamination can be widespread Source: Hoelzer et al. 2012; IJFM 157:](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-19.jpg)
![Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-20.jpg)
![Cleaning & sanitization: Soiled surfaces are a problem Cleaning and sanitization: • • • Cleaning & sanitization: Soiled surfaces are a problem Cleaning and sanitization: • • •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-21.jpg)
![Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-22.jpg)
![Conclusions: Listeria transfers in retail deli environments Transfers from environmental sites to food: • Conclusions: Listeria transfers in retail deli environments Transfers from environmental sites to food: •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-23.jpg)
![Acknowledgements: Too many contributors to name - - - Everyone at FDA CFSAN, in Acknowledgements: Too many contributors to name - - - Everyone at FDA CFSAN, in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-24.jpg)
![QUESTIONS? THANK YOU FOR YOUR ATTENTION ! NOTE: All literature citations available from presenter QUESTIONS? THANK YOU FOR YOUR ATTENTION ! NOTE: All literature citations available from presenter](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-25.jpg)
- Slides: 25
![Risk Mapping and Listeria monocytogenes Transfer in Retail Delis Karin Hoelzer Ph D FDA Risk Mapping and Listeria monocytogenes Transfer in Retail Delis Karin Hoelzer, Ph. D FDA](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-1.jpg)
Risk Mapping and Listeria monocytogenes Transfer in Retail Delis Karin Hoelzer, Ph. D FDA / Cornell University Interagency Risk Assessment - L. monocytogenes in Retail Delicatessens Public Meeting Washington, DC - May 22 nd, 2013
![Goal Leverage knowledge to prevent cross contamination Todays presentation addresses 4 questions 1 Goal: Leverage knowledge to prevent cross - contamination Today’s presentation addresses 4 questions: 1.](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-2.jpg)
Goal: Leverage knowledge to prevent cross - contamination Today’s presentation addresses 4 questions: 1. Which environmental sites are the biggest concern? 2. Likelihood of transfer to food (direct / indirect)? 3. Proportion of bacteria transferred? 4. Efficacy of cleaning / sanitization in removing contamination? Objective: prevent / minimize environmental cross-contamination 2 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Outline Risk mapping L monocytogenes transfers 1 Introduction 2 Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-3.jpg)
Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map of L. monocytogenes in retail delis: 1. Selection of environmental sites & contamination events 2. Expert elicitation of L. monocytogenes transfer dynamics 3. Creating a risk map of L. monocytogenes in retail delis 3. Estimating L. monocytogenes transfer coefficients 4. Estimating the efficacy of cleaning & sanitization 5. Summary & conclusions 3 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Introduction Listeriosis is a very serious clinical disease The clinical symptoms Gastroenteritis Introduction: Listeriosis is a very serious clinical disease The clinical symptoms: - Gastroenteritis -](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-4.jpg)
Introduction: Listeriosis is a very serious clinical disease The clinical symptoms: - Gastroenteritis - Septicemia - Meningitis / encephalitis - Stillbirth / fetal loss - Other (e. g. , joints, skin) (source: Hoelzer et al. , 2012. Vet. Res. 43: 18) 4 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Introduction Crosscontamination at retail is a concern FSIS risk assessment of L monocytogenes in Introduction: Cross-contamination at retail is a concern FSIS risk assessment of L. monocytogenes in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-5.jpg)
Introduction: Cross-contamination at retail is a concern FSIS risk assessment of L. monocytogenes in deli meats: Highest risk for retail-sliced deli meats: - Much greater risk than if pre-packaged - Growth at retail contributes to risk - Retail – sliced deli meats account for ~ 70 % of deli-meat associated deaths (source: Endrikat et al. , 2010. JFP 73 (4): 612 - 619) 5 / 25
![Introduction Listeria is common in the retail environment Crosssectional survey of L monocytogenes in Introduction: Listeria is common in the retail environment Cross-sectional survey of L. monocytogenes in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-6.jpg)
Introduction: Listeria is common in the retail environment Cross-sectional survey of L. monocytogenes in NY retail delis L. monocytogenes contamination: - Extremely common - Highly variable across establishments - Most common in non-food contact sites - Variable across food-contact sites - Store characteristics some impact (source: Hoelzer et al. , 2010. JFP 74 (7): 1083 - 1095) 6 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Likelihood of occurrence Introduction Risk maps analyze risks can guide actions Mediumlow risk Likelihood of occurrence Introduction: Risk maps analyze risks & can guide actions Medium/low risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-7.jpg)
Likelihood of occurrence Introduction: Risk maps analyze risks & can guide actions Medium/low risk Monitor Low risk Low control High risk Immediate action Medium risk Detect & monitor Expected impact Risk = Likelihood of occurrence * expected impact 7 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Prevalence of contamination Introduction A risk map is useful to focus interventions Mediumlow risk Prevalence of contamination Introduction: A risk map is useful to focus interventions Medium/low risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-8.jpg)
Prevalence of contamination Introduction: A risk map is useful to focus interventions Medium/low risk Monitor Low risk Low control High risk Immediate action Medium risk Detect & monitor Probability of transfer to food 8 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Outline Risk mapping L monocytogenes transfers 1 Introduction 2 Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-9.jpg)
Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map of L. monocytogenes in retail delis: 1. Selection of environmental sites & contamination events 2. Expert elicitation of L. monocytogenes transfer dynamics 3. Creating a risk map of L. monocytogenes in retail delis 3. Estimating L. monocytogenes transfer coefficients 4. Estimating the efficacy of cleaning & sanitization 5. Summary & conclusions 9 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Risk mapping Site selection requires stakeholder input Sites transfer events included in risk Risk mapping: Site selection requires stakeholder input Sites & transfer events included in risk](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-10.jpg)
Risk mapping: Site selection requires stakeholder input Sites & transfer events included in risk map: Selection based on: • Literature review • Industry experts • Academic experts • Regulatory experts (federal, states) Events: transfer to food / hands / food contact surface Sites: 31 environmental sites, hands & product Source: Hoelzer et al. 2012; Risk Analysis 32 (7): 1139 - 1156 10 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Expert elicitation Responses differed but not by employer Study design Delphi method Expert elicitation: Responses differed, but not by employer Study design: • ‘Delphi’ method •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-11.jpg)
Expert elicitation: Responses differed, but not by employer Study design: • ‘Delphi’ method • 45 experts enrolled: - 20 from retail industry - 25 from the states • 2 questionnaires • telephone conference Source: Hoelzer et al. 2012; Risk Analysis 32 (7): 1139 - 1156 11 / 25
![Expert elicitation Hands as crosscontamination vehicles Source Hoelzer et al 2012 Risk Analysis 32 Expert elicitation: Hands as cross-contamination vehicles Source: Hoelzer et al. 2012; Risk Analysis 32](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-12.jpg)
Expert elicitation: Hands as cross-contamination vehicles Source: Hoelzer et al. 2012; Risk Analysis 32 (7): 1139 - 1156 12 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Expert elicitation Transfer from FCS to product most likely Source Hoelzer et al 2012 Expert elicitation: Transfer from FCS to product most likely Source: Hoelzer et al. 2012;](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-13.jpg)
Expert elicitation: Transfer from FCS to product most likely Source: Hoelzer et al. 2012; Risk Analysis 32 (7): 1139 - 1156 13 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Expert elicitation Transfer from handtouch surfaces likely Source Hoelzer et al 2012 Risk Analysis Expert elicitation: Transfer from hand-touch surfaces likely Source: Hoelzer et al. 2012; Risk Analysis](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-14.jpg)
Expert elicitation: Transfer from hand-touch surfaces likely Source: Hoelzer et al. 2012; Risk Analysis 32 (7): 1139 - 1156 14 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Likelihood of occurrence Risk mapping Risk maps analyze risks can guide actions Mediumlow Likelihood of occurrence Risk mapping: Risk maps analyze risks & can guide actions Medium/low](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-15.jpg)
Likelihood of occurrence Risk mapping: Risk maps analyze risks & can guide actions Medium/low risk Monitor Low risk Low control High risk Immediate action Medium risk Detect & monitor Expected impact Risk = Likelihood of occurrence * expected impact 15 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![L monocytogenes prevalence i e Likelihood Risk mapping FCSs are the sites of L. monocytogenes prevalence (i. e. , 'Likelihood') Risk mapping: FCS’s are the sites of](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-16.jpg)
L. monocytogenes prevalence (i. e. , 'Likelihood') Risk mapping: FCS’s are the sites of greatest concern Analyzing the retail deli risk map: Milk crates • Based on 2 factors: - Pathogen prevalence Floor / floor drain - Transfer probability • Walk-in cooler Considers evidence: - Amount of data (i. e. bubble size) - Consent among experts (i. e. , legend font size) Sink Produce prep. area Cart wheels Product Deli case Utensils Slicer (1 st slice) Slicer (10 th slice) Transfer probability to food (i. e. , 'expected impact') Food contact surfaces Non-food contact surfaces 16 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Outline Risk mapping L monocytogenes transfers 1 Introduction 2 Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-17.jpg)
Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map of L. monocytogenes in retail delis: 1. Selection of environmental sites & contamination events 2. Expert elicitation of L. monocytogenes transfer dynamics 3. Creating a risk map of L. monocytogenes in retail delis 3. Estimating L. monocytogenes transfer coefficients 4. Estimating the efficacy of cleaning & sanitization 5. Summary & conclusions 17 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Transfer coefficients Transfer efficacy is highly variable Transfer coefficient findings Some Transfer coefficients: Transfer efficacy is highly variable Transfer coefficient findings: • • • Some](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-18.jpg)
Transfer coefficients: Transfer efficacy is highly variable Transfer coefficient findings: • • • Some transfers highly efficient Some transfers very inefficient Transfer efficacy varies by: - source / recipient sites - materials - experimental conditions - transfer characteristics - individual replicates Source: Hoelzer et al. 2012; IJFM 157: 267 - 277 • Widespread contamination with low levels possible • Need to consider variability 18 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Transfers during slicing Contamination can be widespread Source Hoelzer et al 2012 IJFM 157 Transfers during slicing: Contamination can be widespread Source: Hoelzer et al. 2012; IJFM 157:](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-19.jpg)
Transfers during slicing: Contamination can be widespread Source: Hoelzer et al. 2012; IJFM 157: 267 - 277 19 / 25
![Outline Risk mapping L monocytogenes transfers 1 Introduction 2 Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-20.jpg)
Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map of L. monocytogenes in retail delis: 1. Selection of environmental sites & contamination events 2. Expert elicitation of L. monocytogenes transfer dynamics 3. Creating a risk map of L. monocytogenes in retail delis 3. Estimating L. monocytogenes transfer coefficients 4. Estimating the efficacy of cleaning & sanitization 5. Summary & conclusions 20 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Cleaning sanitization Soiled surfaces are a problem Cleaning and sanitization Cleaning & sanitization: Soiled surfaces are a problem Cleaning and sanitization: • • •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-21.jpg)
Cleaning & sanitization: Soiled surfaces are a problem Cleaning and sanitization: • • • Sanitizers differ in efficacy Ineffective on soiled surfaces Efficacy impacted by: - exposure time - sanitizer concentration - inoculum concentration - individual study • • • Efficient removal possible Rel. low efficiency possible Need to consider variability Modified from: Hoelzer et al. 2012; IJFM 157: 267 - 277 21 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Outline Risk mapping L monocytogenes transfers 1 Introduction 2 Establishing a risk map Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-22.jpg)
Outline: Risk mapping & L. monocytogenes transfers 1. Introduction 2. Establishing a risk map of L. monocytogenes in retail delis: 1. Selection of environmental sites & contamination events 2. Expert elicitation of L. monocytogenes transfer dynamics 3. Creating a risk map of L. monocytogenes in retail delis 3. Estimating L. monocytogenes transfer coefficients 4. Estimating the efficacy of cleaning & sanitization 5. Summary & conclusions 22 / 25
![Conclusions Listeria transfers in retail deli environments Transfers from environmental sites to food Conclusions: Listeria transfers in retail deli environments Transfers from environmental sites to food: •](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-23.jpg)
Conclusions: Listeria transfers in retail deli environments Transfers from environmental sites to food: • Food contact surfaces greatest concern: • Effective on clean surfaces, but: - high probability of transfer if contaminated - sanitizer efficacy differs - contamination rel. unlikely but possible - external condition important - variable amounts of bacteria transferred - lower efficacy possible - contamination can become widespread • Efficacy of cleaning / sanitization: • Ineffective on soiled surfaces: - occasionally high – efficiency transfers - impact differs by sanitizer Non-food contact surfaces some concern: - cleaning (& drying) important - contamination is very common - potential residual bacteria - transfer to food rel. unlikely but possible • - transfer to hands / FCS’s major concern Net efficacy of sanitizers: - difficult to evaluate - levels of Listeria unclear 23 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
![Acknowledgements Too many contributors to name Everyone at FDA CFSAN in Acknowledgements: Too many contributors to name - - - Everyone at FDA CFSAN, in](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-24.jpg)
Acknowledgements: Too many contributors to name - - - Everyone at FDA CFSAN, in particular: • Sherri Dennis • Régis Pouillot • Retail Food & Cooperative Program Staff Cornell University, in particular: • Martin Wiedmann • Haley Oliver (now at Perdue University) • Martin Wells • Yrjo Grohn • Food Safety Laboratory USDA FSIS & FSIS contractors, in particular: • Janell Kause • Meryl Silverman • Dan Gallagher (FSIS Contractor/VA Tech) Everyone else who contributed to the research, including: • Food Marketing Institute - in particular Jill Hollingsworth & Larry Kohl for their support of the expert elicitation study • Everyone at the enrolled ‘state’ departments that contributed to the expert elicitation study • New York State Department of Agriculture & Markets – in particular Stephen Stich and Daniel Rice, for their support of the cross-sectional study of L. monocytogenes in NY retail establishments • Everyone else who contributed! This work was supported by the USDA Food Safety and Inspection Service (contact no. AG-3 A 94 -C-09 -0028). K. Hoelzer was supported by Morris Animal Foundation Fellowship Training Grant Do 8 FE-403 for part of this work. This work was supported, in part, by appointments to the Research Participation Program at the Center for Food Safety and Applied Nutrition administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the US Department of Energy and the US Food and Drug Administration. 24 / 25
![QUESTIONS THANK YOU FOR YOUR ATTENTION NOTE All literature citations available from presenter QUESTIONS? THANK YOU FOR YOUR ATTENTION ! NOTE: All literature citations available from presenter](https://slidetodoc.com/presentation_image_h/b7a4b56c0d2fca7b4f6e00a0ec69429e/image-25.jpg)
QUESTIONS? THANK YOU FOR YOUR ATTENTION ! NOTE: All literature citations available from presenter on request. 25 / 25 May 22 nd, 2013 Interagency Risk Assessment--Listeria monocytogenes in Retail Delicatessens Public Meeting
Listeria
Reverse camp test listeria
Risk financing transfer adalah
Liquidity measures
Communication mix in retail
Retail organization and human resource management
Memory parameters
Forward mapping vs backward mapping
Terjemahan
Advantages and disadvantages of alternative risk transfer
Is a disturbance that transfers energy
Residual risk and secondary risk pmp
Business vs financial risk
Relative risk and attributable risk
Attributable risk (ar)
Pembiayaan risiko (risk financing)
"risk management workflow" mitigate transfer
Contractual risk transfer in construction
Risk transfer mechanisms
Draw rmmm plan
Risk reduction vs risk avoidance
How to calculate relative risk
Inherent risks examples
Absolute risk vs relative risk
Smg stock split
Short-term risk examples