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Mission of the
Minnesota Department of
Agriculture
“… to enhance the quality of life for all
Minnesotans by ensuring the
integrity of our food supply, the
health of our environment, and the
strength of our agricultural economy.”
Integrity of the Food Supply
Farm
Processor
Distributor Retail
Home/Restaurant
Minnesota Departments of Health,
Agriculture Laboratory/Program
Buildings
Tony BeckerSafety Administrator
Minnesota Department of AgricultureJune 20, 2008
Brenda FitzgeraldGraphic Arts Specialist
Dairy and Food Inspection Division
Laboratory Services Division
Greg BuzickyDirector Pesticide and Fertilizer Management
(Reports to Joe Martin)
Agricultural Statistics
Division
Agricultural Development & Financial Assistance Division
Joe MartinAssistant Commissioner
Linda WestromAssistant to Commissioner
Michael SchommerState Program Admin Manager
Finance and Budget
Division
Carol MilliganManagement Analyst 4
Robin KinneyAssistant Commissioner
Douglas HartwigState Statistician (Federal )
Larry PalmerInformation Systems Director
(Reports to Jim Boerboom)
David Allen Info Mgmt Services Asst
Division Director
Kurt WoodInfo Systems
Software Services
Supervisor
(part-time)
Thanh Nguyen
Randy HeilITS 3 (Network)
Kim VonToft
Richard Jordan
Beth Eisen ITS 2
Stacy Gulden
Kabao Her Graphic Arts Specialist
Luanne Van
Avery
ITS 3
(Application)
Todd RammerMary Benner
(Part Time)
Jason AndrewsITS4 (Network)
Information Technology Division
Food Inspection Section
Human Resources
Sue MillerPersonnel Representative
Sherry Thomas-Berry Personnel Officer Senior
Rodie KinneyPersonnel Aide
Safety and Health
Agricultural Marketing Services Division
Jim Gryniewski (temporary unclassified)
Director Warehouse Audit Division
James JohnsonWarehouse Examiner Supervisor
Grain Licensing &
Auditing
Wholesale Produce
Mitchell Bauer (Nerstrand)
Mike Arnold (Bemidji)
Howard Rengo (St. Cloud)
Warehouse Examiner Senior
John MalmbergAuditor Intermediate
Livestock Weighing &
Dealer Licensing
John SerbeskuLaw Compliance Representative 2
Mark Garms (Full-Time)
John Luinenberg (Full-Time)
Garvin Prins (Intermittent)
John Palmer (Full Time)
Edward Henning (Intermittent)
(Worthington)
Livestock Weigher 1
Brian Erickson
Paul HuguninAg Marketing Spec Senior
Ruth WhiteState Prog Admin Senior
(Marketing)
Linda Rowley OAS Principal
Mary HanksPlanning Program Supervisor
Linda BougieOAS Principal
Alison FishOAS Intermediate
Wayne MonsenPlanner Senior State
(Non Point Source
Pollution)
Meg MoynihanPlanner Senior State
(Sustainable
Agriculture)
VacantPlanning Program Supervisor
Financial
Assistance
Robert PattonPlanner Principal State
(Ag Land Preservation)
Anthony Cortilet
John Luhman
Jeanne Ciborowski
Monika ChandlerResearch Scientist 2
Gary BlahoskyLoan Officer Senior
Jill BemisAccounting Director
Joyce WalkoszClerk 4 Supervisor
Linda JensonAccounting Technician
Mike ZabelAccounting Supervisor Senior
Adam TorresOAS Principal
Julie RoehlenAccount Clerk Senior
Sandy HinrichsAccounting Technician
Jeff MittelholtzCashier
Gary HorvathProject Manager
(Temporary Unclassified)
(Reports to Jim Boerboom)
Douglas BakkerAssistant Director Lab
Services Division
Bryanne ShawBacteriologist Supv 2
Margaret Andrew-Jaja
Sumol ThungkaewMedical Laboratory
Technician 1
Treeske EhresmannEnvironmental Analyst
Supervisor 2
Elisa SwansonAg Lab Sample
Information Supervisor
Atanacio MezaBuyer 1
Michelle CampbellResearch Scientist Supv 2
(State Chemical Labs)
Phillip HansenEnvironmental Analyst
Supervisor 2
Edward Balcer
Richard Buhl
Yoko Johnson
Randall Moylan
Kathy Reynolds
Mark Peil
Brian KrengelEnvironmental Analyst 3
Mike MuggliAgronomy Services
Supervisor
Louise OgdenState Program Admin
Principal
Dave ReadState Prog. Admin. Manager Sr.
Lorna Girard (St. Paul)
Food Inspection Supervisor
Stephen Clancy (W St. Paul)
Mike Rygwalski (Maplewood)
David Seipel (White Bear Lake)
JoNell O'Neil (Oakdale)
Wilson Barfkecht (Cambridge)
Jim Topie (Duluth)
Lowell Urban (Duluth)
Katherine Simon (New Prague)
Food Inspector 2
Larry Kruger (Rochester)
Food Inspection Supervisor
Richard Kavanagh (DeGraff)
Andrew Cibert (Albert Lea)
Bernet Gunderson (Winger)
Russ Kunkel (Hines)
John Sabetti (Eveleth)
Doris Ruley (Garfield)
Jason Gibbs (Red Wood Falls)
Food Inspector 2
Greg Pittman(Southern Region)
Food Inspection Supervisor
Dawn Hauge (Winona)
Part-Time
Alan Nelson (Renville)
Pat Hansen (Farmington)
Lisa Ramacher (Watertown)
Chuck Lawrence
(Le Center)
Dayle Radde (Norwood)
Dana Mock (Kasson)
Sarah Mellgren
(Zumbro Falls)
Dairy Inspector 2
Joe Dittrich (St. Charles)
Roger Sik (Lake Benton)
Keith Graner (Red Wing)
Interstate Milk Rating Officer
Heidi KassenborgState Prog Admin Manager Principal (Food Safety)
(Reports to Joe Martin)
Dan StoddardAgronomy Asst. Dir. Environ.
Reg.
Paul Liemandt Agronomy Asst. Dir Environ. Reg.
Sharon EmertOAS Senior
Human Resources and
Diversity DivisionPesticide and Fertilizer Management Division
Pat ShierOAS PrincipalGail Ryan
Management Analyst 4
Jim BoerboomDeputy Commissioner
Marie Juenemann
Constance Holth (Rice)
Hydrologist 2
Fertilizer Management
Unit
Stacy WeldonOAS Intermediate
Gary BraunAgric. Program Supervisor Roger Binning
Research Analyst
Specialist Senior
Financial Operations
Payroll
Accounts Payable
Central Services
Program Accountants
Gene HugosonCommissioner
Steve ErnestFinancial Management
Director
(Reports to Jim Boerboom)
Russ HavirPersonnel Program Manager
(Reports to Jim Boerboom)
Neil CunninghamInformation Officer 1
John PiazzaManagement Analyst
3
Linda Lieder OAS Intermediate
Diane WindhamManagement Analyst
2
Mark ZumwinklePlanner Intermediate
Barbara
Weismann(Part Time)
Planner Senior State
Deanna MattesonAccounting Officer Int.
Rose BoulosCSAS, Intermediate
Kay SchmditOS
Thomas FasenAccounting Technician
Kurt MarkhamDirector Agricultural Marketing Services
(Reports to Robin Kinney)
Roger Johanning
John McQuiston (intermittent)
(Worthington)
Livestock Weigher 2
Kristy Broten
Kelly Swartout
Michelle Swarbrick
Librada BautistaChemist 2
Erin EllisEnvironmental Analyst 2
Jewel MihmState Program Admin.
Prin. Lab Cert.
Deepa MathurBacteriologist 1
Royce FullerEnvironmental Analyst 1
Barton Olson
Dean Wagner (intermittent )
Matthew ForstnerBacteriologist Lab Specialist
Terry Varing
Rosemary KoenenOAS Senior
Robert LangForensic Evidence
Specialist
Roger Stetler (Waseca)
Jan Kelly (Walnut Grove)
Anthony Loosbrock (Dalton)
Food Inspector 3
Linda Kollos
Breahnna MutchOAS
David Grussing
(Sauk Centre)
Wayne Nygard (St. Cloud)
Gary Hoffman (Detroit Lakes)
Charles Owen (Willmar)
Burt Scripture (Motley)
Shawn Neumann (Staples)
Food Inspector 2
Jill Denkinger (Glenwood)
Carol Konkol (Cambridge)
Stacie Schanus (Brooklyn Park)
Audrey (Eileen) Schmidt (Hanska)
Jennifer Hedeen(Paynesville)
Food Inspector 1
Paul StrandbergSenior Executive Officer
Mavis BergOAS Principal
Su YeResearch Analyst
Specialist Senior
Sustainable Agriculture &
IPM
Environmental
Review & Land
Use
Brent Furlano
Michele Flottmeyer
Lynn Cardwell
Zena Kassa
Patricia Kirby
Jerry KarschnikAnalytical Lab Specialist
LeeAnn JohnsonResearch Scientist
Supervisor 2
(State Biological Labs)
Carla JohnsonOAS Principal
Environmental SectionRegulatory & Response
Section
Bruce MontgomeryAgric Unit Supervisor
H Gerald Floren Jr. Soil Scientist 2
Monitoring Unit
John Hines
William VanRyswyk
(Mankato)
Hydrologist 3
Heidi FischerAgric. Unit Supervisor
Jane BoerboomAgric. Consultant
Stan KaminskiAgric. Chemical Consultant
(Ag Chemicals)
Steve PoncinAgric. Consultant
(Ag Chemicals)
Deepa de AlwisAg Advisor
(Ag Chemicals)
Inspections &
Permitting Unit
John PeckhamAgric. Unit Supervisor
Gary Gramm Greg Cremers (St. Cloud)
Ed Kaiser
Greg HardingAgric. Consultant (Ag Chemicals)
Kent Runkel (Redwood Falls)
Scott Revier (Winger)
Kathy Behrends (Slayton)
Mark Magnusson
(Fergus Falls)
Mike Fick (Vergas)
Mike Benson (Rochester)
Robert Rialson (Garvin)
Jim Freilinger (Paynesville)
Lisa Berg (Milaca)
Agric. Advisor (Ag Chemicals)
Gregorio Mendez-Ortega
Agric. Specialist (Ag Chemicals)
Incident Response Unit
Cathleen Villas-HornsHydrologist Supervisor
Mike StarkeyPlanning Director State
(Agric Emergency Planning)
Robert W. AndersonAgric. Consultant
Patrick Kelly
Greg HansonAgric. Consultant
(Ag Chemicals)
Paul McNellyAgric. Advisor (Ag Chemicals)
Gary Elsner
James SeabergHydrologist 3
Licensing &
Certification Unit
Joe SpitzmuellerAgric. Unit Supervisor
Alice WallerAgric. Advisor (Ag Chemicals)
Susan SteenOAS Intermediate
Gregg Regimbal (LOA)Agric. Unit Supervisor
Carol DurdenState Prog. Admin. Int.
Juanita RodriguezOAS Senior
Administrative Support
Unit
Jenny HanceOffice Services Supervisor 1
Susan ScherbelOAS
Brenda HohnekeOS
ACRRA Program
Charles TylerManagement Analyst 1
(Data Practices)
Cashiering
Asset Management
Meat Inspection Section
Jackie Anderson (Part-Time)
OAS Intermediate
Michael Horken (Full-Time)
Produce Inspection Supervisor
Arthur Amberg
Robert H. Anderson
Janet Bahe
Angelita Budde
Larry Crandall
Patricia Crowell
Marcia Drexler
Elaine Hilden
John Hockett
Russell Jacob
Wanda Kangas
Molly Lang
Craig Lawrey
Yvonne Lent
Mirja Maninga
Joseph Markovic
Dwayne Monson
Gayle Monson
Craig Orum
Dena Oswald
Trisha Pickar
Daryl Pollock
Sheldon Rasmussen
Edmund Rucinski
Charlene Rutherford
Hazel Schleicher
Richard Schleicher
Phyliss Sletten
Leslie Toppari
Dave Wanner
Bonnie Winkka
Dianne Wylie
(Intermittent)
Agricultural Technician
Charles Steinke (Full-Time)
Perry Paschke (Full-Time)
Michael Bothum(Intermittent)
Plant Industry Inspector 2
(Seed Potato)
Darrell Anderson (Full-Time)
Seed Potato Specialist
James Horton (Part-Time)
Plant Industry Inspector 2
Potato Inspection
East Grand Forks Office
Park Rapids Office
John Mitterholzer
Ann Walters
Rick BrueckerFood Standards Compliance Officer
Dairy Inspection Section
Lori Schmidt OAS Principal
Operations Section
Pesticide Management
Unit
Enforcement Unit
Joe Zachmann Research Scientist 3
Paul Sand
Shannen BornsenInternational Trade Rep
Denton Bruening
Brian Williams (LeSueur)
Donald Sirucek (Staples)
Russell Derickson (Lamberton)
Luke Stuewe (Detroit Lakes)
Kevin Kuehner (Preston)
Ag Advisor (Ag Chemicals)
Zhishan WuResearch Sceintist 3
(Biological Control)
Deb GennowOAS Intermediate
Betsy Sawyer (Application)
Matt Tillotson(Application)
Mike Dolbow (Data Systems)
ITS4
Teresa ChirhartFood Inspection Supervisor (Meat)
LeEtta MarekResearch Scientist 2
Financial Analysis
Roxane SmithAuditor Principal
(Temporary , Intermittent)
Jennifer Stephes (Faribault )
Food Inspector Supervisor (Meat)
Michael RyndersEnvironmental Analyst 1
(Temporary Unclassified)
Quinn CheneyDirector of Policy
Development
Al WithersAg Marketing Spec Sr
Curtis ZimmermanPlanning Program
Supervisor
Ben Miller (Temporary Unclassified)
Project Supervisor
Chris McCabeWarehouse Examiner
Lowell Busman(Part Time)
(Temp Unclass)
Planner Senior State
Peter BraunOAS Intermediate
Mary EdwardsAccounting Officer Senior
Don Jackson (Intermittent)
Nate Goodell (Seasonal)
Plant Industry Inspector 1
(Invasive Species)
Geir FriisoeState Program Admin. Manager Senior
(Plant Protection option)
(Reports to Joe Martin)
Peter Dziuk (Lino Lakes)
David Simmons(Staples)
Lola Youngblom(Nicollet)
Stephanie ViskerPlant Health Specialist 2
Steven ShimekPlant Heallth Specialist 3
Invasive Species
Exclusion Unit
Teresa McDillAgric. Unit Supervisor
Kimberly Thielen
CremersPlant Health Specialist 3
Erich BorchardtResearch Analysis Specialist
(Geographic Info Systems)
Mark SchreiberAgric Unit Supervisor
Lorraine EnglundOAS Intermediate
Nursery Inspection &
Export Certification
William DrykeState Program Admin. Manager
(Plant Protection option)
Tina Seeland
Kathryn Kromroy
Robert KochResearch Scientist 2
Lu SchmidtkeOAS Principal
Plant Protection Division
Judy WickhamOffice Services Supervisor 1
Robbin LuckerOAS Senior
Chuck Dale Agric Unit Supervisor
Jeff Siira (Battle Lake)
Donald Opdahl
(Starbuck)
Duane Munter (Fosston)
Agricultural Advisor
(Agronomy)
Kevin Ballman (Faribault )
Agricultural Specialist
(Agronomy)Xia Moua
State Programs Administrator
Lee WoodState Prog Admin Tech
Spec (ISO Accredidation)
Part-time
Janice HugoOAS Intermediate
Carol LoganState Program Admin Inter.
Mary Horvath
Martha Steinhart
Management Analyst 2
Chemistry Section
Environmental
Analysis
Chemistry/
Toxicology
Biology Section
Craig Braymen Research Scientist 2
Microbiology
Analysis
Seed/Plant
Pathology
Harold Rufledt
Sarlyn ZieglerSeed Analyst Senior
Facilities Management
Douglas BuhlManagement Analyst 3
(Facilities Management)
Ted Radintz (Temporary Unclassified) Planner
Principal Community Specialist
Deborah Davis Hudak(Bemidji)
James JacobsPlant Health Specialist 1
Robert SipPlanner Principal State
Roger MackedanzAgric Unit Supervisor
Jennifer HayesState Prog Admin Int.
Data Management Unit
Stephen Malone Agricultural Consultant
(Agronomy)
Samantha FischerOAS
Kristin VigerFood Inspector 2 (Temp Unclass)
Margaret HartInformation Officer 3
David WeinandGrants Specialist Senior
Nila Hines
Christine WicksAg Advisor
Doug SpanierState Programs Administrator
Manager
Sally LiberkoOAS Senior
Matembo Kitoy (Shakopee)
Cody Gramm (Minnetonka)
Food Inspector 1
Tamara Gerdes (Mankato)
Keri Brever (Rochester)
Lou Cha (Rochester)
Food Inspector 1
Janet Nelson OAS Senior
Natasha NorthrupResearch Scientist 1
Blane WhitePlant Health Specialist 3
Robert Kangas(Intermittent)
Plant Industry Inspector 1
(Invasive Species)
Jerald Yourczek (Bowlus)
Brian Anderson
(Mankato)
Mary Engelhard (St. Paul)
Ardell Knudsvig
(Crookston)
Roy Mayeda (Wheaton)
Randal Renken (Eyota)
Richard Kvols (Madison)
Miranda Trebesch(Springfield)
(Seasonal)
Plant Health Specialist 1
Mark AbrahamsonResearch Scientist 2
(Pest Biological Control)
Plant Pest Survey
Lucia HuntAgric. Unit Supervisor
Gypsy Moth Unit
Alison BoutinResearch Analyst
Intermediate
(Geographic Info Systems)
Ralph GroschenBusiness Advisor
Terry VaringOAS Intermediate
Stephen Talley (Full-Time)
Abdel Boudlali (Full-Time)
Al Peterson (Full-Time)
Area Terminal Produce Inspector
Harley Olinske Jr. (Full-Time)
Produce Inspection Supervisor
Fruit & Vegetable
Inspection
Minneapolis Office
Julie Bisch
Brenda DaBruzziAccounting Officer
Nicole Neeser State Program Admin Mgr. Sr.
Elaine Santi(Northern Region)
Dairy Inspection Supervisor
Elvin Norling (Harris)
Mike Phillips
(Thief River Falls)
Art Holdvogt
(Eden Valley)
Vernal Olson (Hoffman)
Otto Trampe (Baxter)
John Gullickson (Alexandria)
Cliff Patrick (Alexandria)
Dairy Inspector 2
Commercial Feed Unit
Erin Norling – (Harris)
Roy Kollos – (St. Paul)
Wayne Ulrich (Blooming Prairire)
Joy Borchardt (Taylors Falls)
Jan JarmanTiffany Beard(Temp Unclass)
Agric Specialist (Agronomy)
Barb Schroeder(Brandon)
Richard Manthei(Sandborn )
Ag Advisor (Agronomy)
Doug LuedersAgric. Unit Supervisor
Dave SyversonAg Consultant (Agronomy )
Fang (Lisa) WuPlanner Senior State
(Temporary Unclassified)
Daniel Pasche(Part Time)
State Prog Admin (Plant Prot)
Eric ByreCheryl Schmitz
Plant Industry Inspector 1
(Seed Potato)
VacantLoan Officer Supervisor
IPM & Biological
Control
Sustainable &
Organic
Agriculture
Office Support
Dwight WilcoxPlanner Principal State
(Ag Environmental)Ag Development
& Environmental
Quality
Information
Analysis
Darla Riley
Twyla Hill (Temp Unclass)
Planner intermediate
Office Support
Mark DittrichPlanner Senior State
Peter ScheffertAgricultural Development & Financial Assistance Director
(Reports to Robin Kinney)
Ag Development &
Environmental
Quality
Ron StrussResearch Scientist 2
James GonsoskiITS 3 (GIS)
Allen SommerfeldInformation Officer 3
Cynthia Glaser-O’BrienOAS Intermediate
Heather Bartley(Zumbrota)
(Temp Unclassified)
State Programs Admin Int.
James Ostlie State Program Admin Sr
Animal Agriculture
(Temp Unclass)
Adam Birr (Rochester)
Research Scientist 3
Kevin Cavanaugh(Temp Unclass)
Plant Health Specialist 2
Renee BodineCentral Services
Administrative Specialist Sr.
Vacant
ITS2 (GIS)
Livestock Services
Ying Ji (part time)
Ag Marketing Spec Sr.
(Aquaculture)
Abdalla Ibrahim(Seasonal)
Plant Health Specialist 1
Becky BalkPlanner Senior State
(Ag Land Preservation)
Debra Andazola
Wendy TamMarcia Murphy
Bacteriologist 2
Heather JohnsonHydrologist Supervisor
John Sierk(Ag Chemicals)
Ag Consultant
Data Management Unit
Federal Funds
Administration
Marie Abedi-Tari (Peterson )
Grants Spec. Sr.
Alice Freeman
Theresa PaulsonOAS Senior
Jim RoettgerFood Standards Compliance Officer
Corrine McQuillan(Hutchinson)
Food Inspector 2
Audrey (Eileen) Schmidt (Hanska)
Food Inspector 1
Andrew Carter Planner
Part Time
(Temporary Unclassified)
Tiffany Pahs
Robert BadeKatie Brown
Renae Smith
Jill Herberg(Temporary Unclassified)
Plant Health Specialist 1
Karla HillstromITS 2 (GIS)Emily Jerve
Research Analyst
David Tollefson(Rochester)
Hydrologist 1
Nancy LarsonManagement Analyst 3
(Temp Unclassified)
Amanda BaeslerAg Marketing Specialist
Leah Moreland (Part Time)
State Program Admin Int. Heidi HagmanPlant Health Speialist
(Temp)
Karl Hakanson
Megan LennonPlanner Intermediate
(Temp)
Ellen EdwardsCentral Serv Admin Spec
(Temp)
Getachew Tsehaye(Faribault )
Food Inspector 1
Levi Muhl (Hastings)
Markus Bischof
Kevin Scanlon (Carlton)
Food Inspector 2
Philippa StelterOAS Int.
Raell Dybsand
Robin Lawrey
Gwendolyn Toppari(Intermittent)
Plant Industry Inspector 1 (Potato)
Dale Carter(Starbuck)
Ag Consultant (Feed)
Christina ConnellyState Program Admin. Sr.
(Temp Unclassified)
Sandy Dunn State Program Admin Sr.
(Dairy & Food)
Gregg RegimbalAg Program Supervisor
(Temp Unclass)
Collie Graddick (Agronomy)
Ag Consultant
Dairy and Food Inspection
Heidi Kassenborg
Data
Management
Dunn, Sandra
Freeman, Alice
Gennow, Deb
Horvath, Mary
Kollos, Linda
Moreland, Leah
Mutch, Breahnna
Paulson, Theresa
Steinhart, Martha
Dairy Program
Chirhart, Teresa
Meat Inspection Program
Supervisor
Denkinger, Jill
Grussing, Dave
Hoffman, Gary
Konkol, Carol
Neumann, Shawn
Nygard, Wayne
Scripture, Burt
Pittman, Greg
Milk Inspection Program
Supervisor
Hansen, Pat
Hauge, Dawn
Lawrence, Charles
Mellgren (Sexton),
Sarah
Mock, Dana
Nelson, Alan
Radde, Dayle
Ramacher, Lisa
Santi, Elaine
Milk Inspection Program
Supervisor
Gullickson, John
Holdvogt, Art
Norling, Elvin
Olson, Vernal
Patrick, Clifford
Phillips, Michael
Trampe, Otto
Stephes, Jennifer
Meat Inspection Program
Supervisor
Bischof, Markus
McQuillan, Corrine
Muhl, Levi
Scanlon, Kevin
Schanus, Stacie
Schmidt, Eileen
Tsehaye, Getachew Dr.
Food
Program
Bruecker, Rick
Girard, Lorna
Food Inspection Program Supervisor
Barfknecht, Wilson
Clancy, Stephen
Gramm, Cody
Gunderson, Bert
Kitoy, Matembo
Kunkel, Russell
Mathern, Jennifer
O’Neil, JoNell
Seipel, David
Simon, Katherine
Topie, James
Kelly, Jan
Kruger, Larry
Food Inspection Program
Supervisor
Brever, Keri
Cha, Lou
Cibert, Andrew
Gerdes, Tamara
Gibbs, Jason
Kavanagh, Richard
Ruley, Doris
Sabetti, John
Urban, Lowell
Loosbrock, Anthony
Feed Program
Bartley, Heather
Beard, Tiffany
Borchardt, Joy
Jarman, Jan
Kollos, Roy
Manthei, Rick
Norling, Erin
Rygwalski, Mike
Schroeder, Barb
Syverson, Dave
Ulrich, Wayne
Carter, Dale
Roettger, Jim
Stelter, Roger
Viger, Kristin
Walters, Ann
Mitterholzer, John
Owen, Chuck (Pltry
Grading)
Dittrich, Joe
Graner, Keith
Sik, Roger
Meat
Dairy and Food Inspection
Division
• Dairy farms,
processors,
transport vehicles
• Food processing,
grocery stores
• Meat processing
• Feed mills
Spinach Outbreak, 9/2006Spinach Outbreak, 9/2006Spinach Outbreak, 9/2006Spinach Outbreak, 9/2006Spinach Outbreak, 9/2006Spinach Outbreak, 9/2006
Peanut butter, 2/2007 Peanut butter, 2/2007 Peanut butter, 2/2007 Peanut butter, 2/2007
The story continues…
From Case Households: 11
Bags of Lettuce Recovered
E. coli O157:H7 isolation from
Lettuce: Difficulties
• Outbreak strain had never been
isolated from lettuce
• E. coli can become internalized in
lettuce tissue
• By the time an outbreak is detected, too
late to find any remaining lettuce
New Way to Test Lettuce
• Lettuce put in
broth and placed on
orbital shaker
• Gentle agitation
allowed breakdown
of lettuce to release
any microrganisms
Concentrating and Separating
E.coli O157:H7 from Lettuce
• Paramagnetic beads coated with
antibodies to E. coli O157:H7 placed in
broth to bind organism
• Once binding took place, the beads
separated by magnetic field
Culture and Molecular
Subtyping
• Beads cultured
• Standard Biochemical, serologic,
and molecular confirmation
• O157 isolated from 2 bags of salad
within 60 hours of receipt
Case and Lettuce PFGE
Patterns Case
Produce Traceback
• Single processing
plant (Soledad, CA)
• Production Date of
September 7, 2005
• Lettuce harvested
from any 1 of 7 fields
• Rapid detection of outbreak allowed for
collection of lettuce samples
• New methods to detect E. coli O157:H7
were successful in isolating organism
from lettuce
• Collaboration between Public Health
Laboratory and epidemiologists resulted in
rapid recognition of outbreak, implication
of lettuce as the vehicle
• Rapid epidemiologic response and novel
approach of Agriculture Laboratory enabled
isolation of outbreak strain of O157 from
lettuce for first time during a public health
investigation
Conclusion