Demystifying the Laboratory

2

Outline• Role of a regulatory laboratory• Where do samples come from?• What do we test?• Laboratory programs• Rapid Response Team program• RRT investigations• Investigations involving environmental samples

3

Food Laboratory Mission:• To provide expert state of the art

analytical testing in support of food safety and security programs, and consumer and agricultural interests in New York State.

4

Division of Food Laboratory

Albany, NY

5

Food Laboratory sections:• Food and Dairy Microbiology: analyze over 15,000

food samples/yr. ~ 2,500 of these for foodborne pathogens and the remainder for other indicators

• Food and Dairy Chemistry: analyze over 5,000 food samples/yr. ~ 1,500 for chemical hazards

• Pesticide residues: analyze over 2,500 produce samples/yr. for 165 different pesticide residues and pharmaceutical products

6

What do we test? • Primarily testing for specific health hazards and/or

accuracy of labeling

• Focus on high risk, ready-to-eat food, feed, andenvironmental samples

• Collaborate and coordinate work planning with other allied public health agencies (FDA, USDA, EPA, NYSDOH, etc.)

7

Division of Food Laboratory • PulseNet Ag laboratory

• Genome Trakr laboratory

• FDA certified for milk testing laboratory

• Member of Food Emergency Response Network (FERN)

• Participant of the Pesticide Data Program (USDA)

Division of Food Laboratory

2008 Accredited to• ISO/IEC 17025 Standard

• AOAC ALACC Criteria: Guidelines for Laboratories Performing Microbiological and Chemical Analysis of Food, Dietary Supplements, and Pharmaceuticals

https://www.a2la.org/scopepdf/2749-01.pdfhttps://www.a2la.org/scopepdf/2749-02.pdf

Division of Food Laboratory

Scope of Accreditation - Chemical• Ash in Feed• Determination of Crude Fiber in Animal Feed• Determination of Cyclamate by UPLC/MS• Determination of Fat, Fiber, Protein and Moisture in Animal Feed by NIR• Determination of Lasalocid in Feed by HPLC/MS/MS• Determination of Minerals in Animal Feed• Determination of Monensin in Feed by HPLC/MS/MS• Determination of Nitrogen in Fertilizer• Determination of Patulin by HPLC/MSMS• Determination of Potash in Fertilizer• Determination of Sulfites• Metal Analysis by Closed Bessel Microwave Digestion an ICP/MS• Multiple Residue Screening of Pesticide Data Program (PDP) Samples• Percent Moisture in Feed and Pet Food• Toxic Metal Analysis in Foods by Closed Vessel Microwave Digestion and ICP/MS

Division of Food Laboratory

Scope of Accreditation - Biological

• Campylobacter jejuni/lari /coli species on BAX

• Campylobacter species USDA Method

• Escherichia coli O157:H7 on ABI 7500 Fast

• Escherichia coli O157:H7 Modified BAM Method

• Detection of Shiga-toxin producing E. coli (STEC) by rtPCR on 7500 ABI Fast

• Listeria monocytogenes on ABI 7500 Fast

• Listeria monocytogenes BAM Method

• Salmonella species on ABI 7500 Fast

• Salmonella species BAM Method

• Phosphatase Testing using the Advanced Instruments Fluorophos

11

Where do the samples come from?

• Within Ag and Markets (surveillance)• Division of Food Inspection • Division of Milk Control/Dairy Services• Division of Plant Industry

Collected by field staff from farms, food processing plants, food/feed/fertilizer manufacturers, distribution centers, farmers markets, and retail stores.

12

Where do the samples come from?

• Other states • NE Region

13

Where do the samples come from?

• Federal agencies• AMS Pesticide Data Program • Food Emergency Response Network (FERN)• Feed Safety Program

14

Where do the samples come from?

• Develop and maintain multi-jurisdictional RRTs that operate under ICS/NIMS and Unified Command to support integrated all-hazards prevention, response and recovery efforts for food/feed. Unify and coordinate federal/state/local food/feed emergency response efforts, including:• Strengthening the link among epidemiology, lab and environmental health components.

• Foodborne illness/outbreak investigations, removing tainted food from commerce, root cause investigations.

• Supporting components: training, data sharing, data analysis and communications.

• Capture/develop and support adoption of best practices (mentorship)

• Ensure alignment with national priorities (FSMA, IFSS, PFP)

Rapid Response Teams

“The RRT Five-Legged Stool”

Food

Program Feed

Program

FDA

District

LaboratoryEpidemiology

17

Outbreaks & Recall Investigations• Salmonella associated with deli meats/spices (2010)

• Shiga-toxin producing E. coli O145 in lettuce (2010)

• Listeria monocytogenes in potato salad (2011)

• Salmonella in chicken livers (2011)

• E. coli O157:H7 associated with produce (2013)

• Listeria monocytogenes in imported seafood (2012-13)

• Salmonella in pet foods/treats (2013)

• Salmonella in chia seeds (2014)

• Listeria monocytogenes in soft cheese (2016-17)

• Listeria monocytogenes in deli markets (ongoing)

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RRT Investigations• From December- October 2017

• Six events investigating presence of Salmonella Enteriditis and Listeria monocytogenes• Four joint investigation with FDA (NYSDAM-product samples and FDA-environmental)• Most samples tested in the laboratory were negative except for one…..

• February 2017• Listeria monocytogenes in raw milk cheese

• Joint investigation with FDA (NYSDAM-product samples;FDA-environmental and product samples)• 6 samples were taken. Three samples positive.

Listeria monocytogenes in Raw Milk Soft Cheese

• Firm issues nationwide recall of product 3/7/17

• PFGE performed by NYS Ag and Markets Food Laboratory on cheese isolates patterns matched to clinical isolates 3/8/17

• WGS performed by NYS Ag and Markets Food Laboratory on cheese isolates and FDA matches sequence to ≤3 SNPs difference to those of the clinical isolates 3/13/17

20

Investigations involving Environmental Sampling• From January - October 2017

• Seven environmental sampling events investigating presence of Listeria monocytogenes in deli markets

• Swabs are collected from different zones

• Five events resulted in positive results (environmental or food)

• Once positive samples are identified, Food Safety inspectors return to the establishment and request compliance of the “Listeria protocol”.

Listeria monocytogenes –environmental samples

PFGE-ApaI100

90

80

PFGE-ApaI PFGE-AscI

FCF__0968336-S002-001

FCF__0968336-S022-001

17B01532M-1

CO___HUM-2016023857

USDA_210261727

USDA_210262277

FCF__0968336-S005-001

FCF__0968336-S013-001

FCF__0968336-S014-001

FCF__0968336-S023-001

FCF__0968336-S027-001

FCF__0968336-S029-001

FCF__0968336-S030-001

FCF__0968336-S031-001

FCF__0968336-S035-001

FCF__0968336-S046-001

Serving toolHuman (2016)

Listeria monocytogenes –environmental samples

PFGE-AscI

10

0

90

80

70

PFGE-AscI

20

.00

40

.00

10

0.0

0

15

0.0

0

20

0.0

0

25

0.0

0

30

0.0

0

35

0.0

0

40

0.0

0

50

0.0

0

60

0.0

0

20

00

1.0

0E

4

5.0

0E

4

PFGE-ApaI

20

.00

40

.00

10

0.0

0

15

0.0

0

20

0.0

0

25

0.0

0

30

0.0

0

35

0.0

0

40

0.0

0

50

0.0

0

60

0.0

0

20

00

1.0

0E

4

5.0

0E

4

15B07268-10

15B07268-6

17B06335L-5

17B06335L-6

17B06335P-7

17B06335P-8

17B06335T-5

17B07453-9

17B10701-D1

17B10701-D10

17B10701-F9

17B10701-H10

17B10701-H8

17B10701-K1

17B10701-K8

17B10701-M4

17B10701-M7

17B10701-N7

17B10701-O1

LM-1.2W4-103116

LM-2 WK1 080817

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

NYAG

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

USA

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

NY

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Bronx

Deli meat

Deli meat

Sponge

Sponge

Sponge

Sponge

Sponge

Deli Meat

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Sponge

Food

Food

Environmental

Environmental

Environmental

Environmental

Environmental

Food

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

Environmental

mortadella w/ pistachio

mortadella w/ pistachio

Ware wash sink

Ware wash sink

Deli case #1

Deli case #1

Deli case #4

mortadella w/pistachio

back cooler #1 top

back cooler #1 top

back cooler #3 top

ware wash sink

ware wash sink

slicer machine #3 (for me.

slicer machine #3 (for me.

deli slicer #5 (for cheese)

deli slicer #5 (for cheese)

deli case #7 (by exit)

cutting board #4 (front, w.

2015-07-15

2015-07-15

2017-06-06

2017-06-06

2017-06-06

2017-06-06

2017-06-06

2017-06-27

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2017-09-26

2015-07-21

2015-07-21

2017-06-21

2017-06-21

2017-06-21

2017-06-21

2017-06-21

2017-07-06

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2017-10-05

2015-07-23

2017-06-23

2017-06-23

2017-06-23

2017-07-11

2017-10-12

2017-10-12

2017-10-12

2017-10-12

2017-10-12

2017-10-12

2017-10-12

1

1

1

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1

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GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A16.01.

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

GX6A12.0186

7/15/17

6/6/17

6/27/17

9/26/17

Isolation Date

Acknowledgements

Thank you!

Maria Ishida, PhDDirector of Food Laboratory

NYS Department of Agriculture and MarketsEmail: Maria.Ishida@agriculture.ny.gov