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Recalls & Tracebacks. Carrie Rigdon, PhD, MPH Dairy and Food Inspection Division Rapid Response Team Project Planner. Dairy and Food Inspection Division. Dairy farms, processors, transport vehicles Food processing, grocery stores Meat processing Feed mills.
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Recalls & Tracebacks Carrie Rigdon, PhD, MPH Dairy and Food Inspection Division Rapid Response Team Project Planner
Dairy and Food Inspection Division • Dairy farms, processors, transport vehicles • Food processing, grocery stores • Meat processing • Feed mills
Minnesota Departments of Health, Agriculture Laboratory/Program Buildings
Farm Transport Processing Distribution Preparation Exposure Incubation Illness Death Foodborne Disease Detection Timeline
Farm Transport Processing Distribution Preparation Exposure Incubation Illness Death Foodborne Disease Detection Timeline Food Monitoring Programs Human disease surveillance
Surveillance Systems Food Monitoring Programs Human disease surveillance • Food pathogen surveillance • Animal disease surveillance • Industry surveillance • Consumer complaints • Pathogen-specific human disease surveillance • Illness notification / complaint systems • Syndromic surveillance
Product Tracing • Key Concepts • Trace-back is only as good as the epidemiology • The more specific, the better the results • Oftentimes, solving an outbreak requires good evidence from both the epi and the trace-back
Cluster of Cases that match by PFGE subtype Common Exposure – Same Restaurant Chain – Varying locations All Cases Consumed Sprout Containing Sandwiches Different Suppliers for each Restaurant Different Growers for each Supplier Common Seed Source for each Grower Recall – Stop On-going Exposure Common Farm for Seed Source Epidemiology meets Trace-back Epidemiology “Epi” Trace-back
Two cases name Good Earth Salmonella Saintpaul Patron Cases Associated with the Good Earth Restaurant by Date of Isolate Receipt in MDH Laboratory, June 2008 7 6 5 Number of Cases 4 3 2 1 22 23 24 25 26 27 28 29 30 1 2 3 4 June Date of Isolate Receipt
Second case names Good Earth Visit restaurant Initial case-control study/traceback results to CDC Salmonella Saintpaul Patron Cases Associated with the Good Earth Restaurant by Date of Isolate Receipt in MDH Laboratory, June 2008 7 6 5 Number of Cases 4 3 2 1 22 23 24 25 26 27 28 29 30 1 2 3 4 June Date of Isolate Receipt
Salmonella Saintpaul Investigation • Illustrates: • Combination of rapid epidemiological and traceback investigation • Identify source as jalapeño peppers • Trace peppers back to Texas • Joint communications with FDA and CDC
Salmonella Typhimurium Investigation • Illustrates: • Combination of rapid epidemiological, traceback and laboratory identification • Identify source as peanut butter • MDA Lab finds Salmonella in King Nut • Joint communications with FDA and CDC
Institutional link, Implication of PB 1st 9 cases in MN
$64,000 Question Will the food isolate match the outbreak strain?
Sample Results • Salmonella Typhimurium • 5 lb container of King Nut Creamy Peanut Butter • Genetic fingerprint matches nationwide outbreak • 35 lb container of Parnell’s Pride Creamy Peanut Butter • Salmonella Tennessee • 5 lb container of King Nut Creamy Peanut Butter • Returned from Nursing Home A
MDH Lab MDH Epi MDA Food Inspection MDA Lab
Questions? • Please visit our website: • www.mda.state.mn.us • Click Food From Farm to Table • Food Safety • Carrie.Rigdon@state.mn.us • 651-201-6453