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118 th AFDO Annual Educational Conference, Denver, CO Risk-Based Environmental Monitoring and Decision Making June 23, 2014. Listeria Surveillance, Decision Making, and Corrective Actions at Retail. Carrie Rigdon, PhD Rapid Response Team Supervisor Dairy & Food Inspection Division. - PowerPoint PPT Presentation
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Listeria Surveillance, Decision Making, and
Corrective Actions at RetailCarrie Rigdon, PhD
Rapid Response Team SupervisorDairy & Food Inspection Division
118th AFDO Annual Educational Conference, Denver, CO Risk-Based Environmental Monitoring and Decision MakingJune 23, 2014
Routine Sampling Plan• Why: Identify issues in potentially risky
foods & environments• What: Food and environmental samples at
retail and manufacturing• When: New assignments 2 to 4 times a
year
Micro Samples by Year – All Sampling
2009 2010 2011 2012 2013 20140
100
200
300
400
500
600
700
800
900
462
820
457
133
332
144
1463
7 14 8 3
SamplesPositive
3.0% 7.5% 1.5% 10.5% 2.4% 2.0%% Positive:
Positives by Year – All Sampling
2009 2010 2011 2012 2013 20140
10
20
30
40
50
60
70
4 41 0 0 0
10
59
7
14
26
3
SalmonellaListeria
Listeria Positives by Year – Environmental Sampling
2009 2010 2011 2012 2013 20140
50
100
150
200
250
300
350
106
315
264
133
231
141
0
41
7 14 253
SamplesPositives
0% 13.0% 2.6% 10.5% 10.8% 2.1%% Positive:
Listeria Species – Environmental Sampling
2010 2011 2012 2013 20140
5
10
15
20
25
30
35
40
45
Locations of Listeria 2010-14
Drain
Floor
Cart Wheels
Table
Mat
Floor-Wall juncture
Door hadle/seal
Inside service case
Condenser pan
0 5 10 15 20 25 30 35 40
35
14
12
8
6
5
5
4
1
Why does MDA look for Listeria at Retail?
• Monitor operator’s control for risks where RTE PHF are prepared, handled, or stored
• Prevent adulteration and possibility for adulteration
What happens when Listeria is found?
• Assess whether firm has lost control of their process
• Bring operator back into compliance – adulteration statues – Minn. Stat. 34A.02 (Adulteration),– Minn. Stat. 31.02 (Prohibited Acts), and – Minnesota Administrative Rule
Chapter 4626.0015 (Food Safety under Food Code)• Corrective Action Plan best guidance for
accomplishing this
Firm Actions: Cleaning, CAP, and Verification
• Intensely clean and sanitize• Assess causes and contributing factors• Write a Corrective Action Plan (CAP)
– Cleaning and Sanitizing – how? where?– Equipment and employee flow– Repairs to equipment or structure– Employee training
• Verify that actions have been effective = firm sampling
MDA Actions• Provide guidance but not act as their QA• Review CAP• Confirmatory sampling• Visit operator to observe whether control
measures were implemented
Questions?
Carrie Rigdoncarrie.rigdon@state.mn.us651-201-6453
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