Haley Oliver Publication

Supplemental Figure 1.

Nucleotide sequence alignment of the rsb operon and two upstream genes from F2365, FSL J1-194 and 10403S. The two upstream genes LMOf2365_0906 and LMOf2365_0907 were included because no rho-independent transcription terminator was identified between LMOf2365_0907 and rsbR suggesting that a run-through transcript may encode these two upstream genes within the rsb genes. Coding regions are indicated by colored bars above the alignment. Promoter regions and transcription start were identified based on unpublished RNA sequencing data (Orsi et al., in preparation). The -35 and -10 promoter regions are colored in red and underlined. Transcription start sites are underlined and indicated by a "+1" above them. The rho-independent transcription terminator downstream rsbX is indicated and underlined. Start codons are colored in red. Stop codon are indicated by the symbol "*". The exact location of the transcription start site upstream rsbV was not unequivocally identified and, therefore is not marked. The -35 and -10 promoter regions upstream rsbR were not unequivocally identified and, therefore are not shown. Mismatches in the nucleotide and amino acid sequences are shaded in gray.

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Supplemental Materials 1: SSOPs developed in this study with FMI Listeria Working Group

Supplemental Table 1: Detailed sampling instructions for environmental sample collection provided to NYSDAM inspectors trained to collect environmental and food samples for this study.

	Establishments where sliced deli meats are sampled1


1	Slicer
2	If available and in particular if salads are sampled: Bowl, spoon, cutting boards, tables (e.g., utensils used to prepare salads) – 1 to 2 sponge samples may be taken from the most instruments that most likely harbor Listeria. If these instruments are available samples should be collected even if no salads are sampled
3	Sponge from deli case (total sample area of approx. 1 sq. yd.) – this sample should be collected from various areas in the deli case, e.g., areas close to sliced meats, areas closed to raw meats
4	Sponge from sink interior (sample whole sink)
5	Drain(s) in the store (sample whole drain, remove drain cover if possible). If available up to 3 drains should be sampled (e.g., in deli, raw meat, seafood, and produce area, if they exist). Please make sure to note location of the drain (e.g., close to deli counter, close to door form outside etc.)
6	Sponge sample form cold storage room (if available); one sample should be collected from floor (sample approx. 1 sq, yd.); 1 – 2 additional samples can be collected, e.g., from a drain in the cold room and from racks.
7	Floor in a dry isle (e.g., an isle where canned goods are sold) (sample approx. 1 sq, yd.)
8	Sponge from dairy case (sample approx. 1 sq. yd.) – if available
9	One sponge sample from floor or a foot mat near store entrance (sample approx. 1 sq. yd.)
10 etc	Additional optional sponge samples can be taken from high risk areas for Listeria cross-contamination (e.g., areas where raw meat, vegetables, and seafood are handled)

1 Inspectors that collected deli salad samples noted whether deli salads were made in the store or whether they represented pre-made salads that were repackaged and/or aliquoted in the store;
2 Addtional samples were taken from high risk areas at the inspectors’ discretion.

Deli 1‐ 1 LM positive sample

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐; se	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐; se	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	CU-‐299-‐338; in	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	.	-‐	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	.	.	-‐	.	.
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐; in	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 2- 50 LM positive samples

	April	May	June	July	August	September	October	November	December
1-‐Pan	-‐	-‐	-‐	.	.	.	.	.	.
2-‐slicerblade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐slicercase	-‐	-‐	-‐	.	.	.	.	.	.
12-‐delicase	.	.	.	-‐	CU-‐55-‐266	-‐	-‐	-‐	-‐
13-‐casebymeat	.	.	.	.	.	-‐	.	-‐	.
14-‐delicasetray	.	.	.	-‐	CU-‐55-‐266	-‐	-‐	-‐	-‐
16-‐3sink_inter	.	.	.	-‐	CU-‐55-‐266	-‐	-‐	-‐	CU-‐294-‐321; in
19-‐1sink_inter	.	.	.	-‐	CU-‐55-‐266	-‐	-‐	-‐	-‐
39-‐CuttingBoard	.	.	.	-‐	-‐	.	-‐	-‐	-‐
7-‐rewraptable	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
40-‐Counter	.	.	.	.	-‐	-‐	-‐	-‐	-‐
29-‐coldracks	.	.	.	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
35-‐knifejuncture	.	.	.	.	.	.	.	.	.
9-‐dryingrack	.	.	.	.	.	.	.	.	.
17-‐3sink_exter	.	.	.	-‐	CU-‐258-‐323	-‐	-‐	-‐	-‐
18-‐flrwalljunct-‐3b	CU-‐11-‐320; in	CU-‐8-‐96	-‐; in	-‐; in	-‐	CU-‐11-‐320	-‐	-‐	-‐
20-‐1sink_exter	.	.	.	-‐	CU-‐55-‐266	-‐	CU-‐40-‐96	-‐	-‐
21-‐flrwalljunct-‐1b	.	.	.	CU-‐11-‐320; in	CU-‐82-‐215; in	-‐	-‐	CU-‐11-‐320	CU-‐262-‐79; in
22-‐delidrain	.	.	.	-‐	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐262-‐79
23-‐adjflrdrn	CU-‐8-‐96; in	CU-‐262-‐79; in	CU-‐262-‐79; in	CU-‐262-‐79; in	CU-‐262-‐79; in	CU-‐11-‐320	CU-‐8-‐96; in	CU-‐11-‐320	CU-‐262-‐79
24-‐delifloor	.	.	.	-‐; in	-‐	CU-‐11-‐320; in	CU-‐11-‐320	-‐	CU-‐262-‐79
26-‐coldfloor	.	.	.	CU-‐55-‐266; in	-‐	-‐	-‐	CU-‐11-‐320	CU-‐262-‐79
27-‐coldwall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
28-‐colddrain	.	.	.	-‐	CU-‐262-‐79	-‐; in	-‐; se	-‐	CU-‐262-‐79; in
31-‐stdwater	.	.	.	.	.	.	CU-‐11-‐320; se	.	CU-‐262-‐79
32-‐squeege	.	.	.	CU-‐11-‐320; in	-‐	CU-‐262-‐79	-‐	-‐	CU-‐262-‐79
30-‐cartwheel	.	.	.	-‐	CU-‐55-‐266	CU-‐8-‐96	-‐	-‐	-‐
33-‐hose	.	-‐	.	-‐	-‐; we	-‐	-‐	CU-‐11-‐320	-‐
34-‐trashcan	-‐	.	-‐	-‐	-‐; we	-‐	-‐; in	-‐	-‐
36-‐cleaningdrain	.	.	.	.	.	.	.	.	.
38-‐coolershelfwall	-‐	-‐	-‐	.	.	.	.	.	.
4-‐slicerknob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
5-‐scaletop	.	.	.	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
6-‐scalekeys	.	.	.	.	.	.	.	.	.
15-‐casehandle	.	.	.	CU-‐55-‐266	CU-‐56-‐266	-‐	CU-‐55-‐266	-‐	-‐
8-‐kniferack	.	.	.	.	.	.	.	.	.
10-‐utensilspn	.	.	.	.	.	.	.	.	.
11-‐cutboard	.	.	.	.	.	.	.	.	.
25-‐colddoorhand	.	.	.	.	.	.	.	.	.
37-‐Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelve

Deli 3- 1 LM positive sample

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐40-‐96	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐; in
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 4- 6 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	-‐	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐; in	-‐	-‐	-‐	CU-‐294-‐321; in
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	.	.	-‐	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐; se
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐; se
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐57-‐267
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	CU-‐57-‐267; se	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	-‐	-‐	-‐	-‐	CU-‐57-‐267	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	CU-‐57-‐267; se	-‐	-‐; we
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐; in	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	CU-‐258-‐69; se	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 5- 0 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 6- 1 LM positive sample

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	-‐	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	.	.	-‐	.	-‐	.
Cutting board	.	.	.	.	.	.	.	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	.	.	-‐	.	-‐	.
Floor/wall junction (1-‐basin)	.	.	.	.	.	-‐	.	-‐	.
Deli drain	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐; in	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	CU-‐229-‐338	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 7- 53 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	CU-‐57-‐267; in	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	CU-‐294-‐321; in	-‐
Cutting board	.	.	.	.	.	-‐	.	.	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	CU-‐258-‐69; in	CU-‐258-‐69; se	CU-‐258-‐69	CU-‐258-‐69	CU-‐258-‐69	CU-‐8-‐96	CU-‐258-‐69	CU-‐258-‐69; se	CU-‐258-‐69
1-‐basin sink exterior	.	.	.	CU-‐258-‐69; in	-‐	-‐	CU-‐258-‐69	-‐	CU-‐258-‐69; in
Floor/wall junction (1-‐basin)	.	.	.	CU-‐258-‐69; in	-‐; in	-‐	CU-‐258-‐69	CU-‐258-‐69; se	CU-‐258-‐69; in
Deli drain	.	.	.	CU-‐258-‐69; se	CU-‐258-‐333; in	-‐	-‐	CU-‐258-‐69; in	CU-‐258-‐69; in
Floor adjacent to drain	-‐	CU-‐258-‐69; se	CU-‐258-‐69	CU-‐258-‐69	CU-‐258-‐69; in	-‐; in	CU-‐258-‐69; in	CU-‐258-‐69	CU-‐258-‐69; in
Deli floor	.	.	.	CU-‐258-‐69; in	-‐; in	-‐; in	-‐	CU-‐258-‐69; in	-‐
Cold room floor	.	.	.	CU-‐258-‐69; in	CU-‐295-‐329; in	-‐; in	CU-‐258-‐69	CU-‐258-‐69; in	CU-‐258-‐69; in
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐258-‐69; in	CU-‐258-‐69; in	-‐	CU-‐258-‐69; in	CU-‐258-‐69; se	CU-‐258-‐69; in
Standing water	.	.	.	.	.	-‐; in	.	.	.
Squeegee	.	.	.	CU-‐258-‐69	CU-‐258-‐69; in	-‐; in	CU-‐258-‐69; in	CU-‐258-‐69; in	CU-‐258-‐69; in
Cart Wheel	.	.	.	CU-‐258-‐69; in	-‐	-‐	-‐	-‐	-‐; in
Hose	.	.	.	-‐	CU-‐258-‐69	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	CU-‐258-‐69	-‐	CU-‐258-‐69	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	CU-‐258-‐69	-‐	-‐; in	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	CU-‐258-‐69; in	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 8- 15 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	CU-‐40-‐96	CU-‐200-‐227	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	CU-‐8-‐340	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐; in	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	CU-‐8-‐340	CU-‐8-‐340	CU-‐8-‐340	-‐	CU-‐8-‐340	-‐
Deli drain	.	.	.	-‐	CU-‐8-‐326	-‐	-‐	-‐	-‐
Floor adjacent to drain	CU-‐11-‐326	-‐	-‐	-‐	CU-‐11-‐326	-‐	-‐	-‐	-‐
Deli floor	.	.	.	CU-‐8-‐340	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	CU-‐8-‐340	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	CU-‐8-‐340	CU-‐8-‐340	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	CU-‐8-‐340	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 9- 1 LM positive sample

	April	May	June	July	August	September	October	November	December
Pans	.	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐; in	-‐
1-‐basin sink exterior	.	.	.	.	.	.	.	.	.
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐; in	-‐; in	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐; in	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	CU-‐299-‐338; in	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	.	.	.	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Hose	.	.	.	.	.	.	.	.	.
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐; in	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 10- 41 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	CU-‐258-‐69	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	CU-‐258-‐323	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	-‐	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐294-‐321	CU-‐294-‐321	CU-‐57-‐267	CU-‐57-‐267	CU-‐57-‐267; we	CU-‐294-‐321; we
Cutting board	.	.	.	.	.	.	.	.	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	CU-‐11-‐320	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐40-‐96	-‐	CU-‐11-‐320
Floor adjacent to drain	-‐	-‐	-‐	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	-‐	CU-‐11-‐320
Deli floor	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	-‐	-‐	-‐
Cold room floor	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	-‐	-‐	-‐
aCold room wall	.	.	.	CU-‐11-‐320	CU-‐11-‐320	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐8-‐96	CU-‐11-‐320	CU-‐57-‐267	CU-‐11-‐320
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	CU-‐11-‐320	.	CU-‐11-‐320	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	CU-‐11-‐320	CU-‐11-‐320	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	CU-‐11-‐320	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	CU-‐258-‐323	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 11- 3 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐200-‐227
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐; we
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐40-‐96
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	CU-‐11-‐326	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 12- 5 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	-‐	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐320; in	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	.	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	.	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	.	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐; in	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	.	-‐	-‐; in	CU-‐11-‐320; in	-‐; in
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐; in	-‐	-‐; in
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐; in	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐; we	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐320; in	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	.	.	.	.	.
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	CU-‐294-‐321; in	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐320; in	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 13- 9 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐282	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	CU-‐11-‐320	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐320	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	CU-‐11-‐282
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	CU-‐11-‐282	CU-‐11-‐282	CU-‐11-‐282
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	CU-‐11-‐282	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	CU-‐11-‐282	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 14- 1 LM positive samples

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	CU-‐299-‐338; in	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	.	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	-‐	.	-‐	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	.	.	.	.	.
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 15- 0 LM positive sample

	April	May	June	July	August	September	October	November	December
Pans	-‐	-‐	-‐	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	-‐	-‐	-‐	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐; in	-‐	-‐; in	-‐; in	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐; in	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	-‐	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐; in
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	-‐	-‐	-‐	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	-‐	-‐	-‐	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 16- 22 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐; in	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐; in	-‐	-‐	-‐	CU-‐8-‐96	-‐
Deli case near raw meat	.	.	.	-‐; in	-‐	-‐	-‐	CU-‐8-‐291; we	-‐
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	CU-‐57-‐267; in	-‐; in	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐57-‐267	-‐	-‐	CU-‐294-‐321; in	-‐	CU-‐294-‐321
Cutting board	.	.	.	-‐; in	.	-‐	-‐	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	CU-‐11-‐320; se	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	CU-‐8-‐96	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	CU-‐8-‐96; in	CU-‐8-‐96	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐; in	-‐	-‐; in	-‐; in
Floor adjacent to drain	.	.	.	CU-‐8-‐96	-‐	-‐; in	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐; in
Cold room floor	.	.	.	-‐	-‐	-‐	CU-‐8-‐96	CU-‐8-‐96; in	-‐; in
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐11-‐324; in	-‐; in	-‐; in	CU-‐8-‐96	CU-‐8-‐96; in	-‐
Standing water	.	.	.	.	.	.	-‐; in	CU-‐8-‐96	.
Squeegee	.	.	.	-‐	CU-‐8-‐96	CU-‐8-‐96; in	CU-‐8-‐96	CU-‐8-‐96; in	-‐
Cart Wheel	.	.	.	-‐; in	-‐	-‐	-‐	-‐	-‐; in
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	CU-‐8-‐96	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 17- 5 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	.	-‐
Deli case near raw meat	.	.	.	.	.	.	.	-‐	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	CU-‐11-‐320; in	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	CU-‐11-‐320; in	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	CU-‐11-‐320; in	-‐	-‐
Standing water	.	.	.	-‐; Lspp	.	.	.	.	.
Squeegee	.	.	.	.	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	CU-‐11-‐320; in	-‐	-‐
Hose	.	.	.	.	.	-‐	.	.	.
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	CU-‐11-‐320; in	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 18- 5 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐; in	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐8-‐96
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	CU-‐40-‐96	-‐	CU-‐40-‐96	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐143-‐316
Floor adjacent to drain	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐143-‐316
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐; we	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐; we	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 19- 4 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	CU-‐182-‐173	-‐	-‐	-‐	CU-‐182-‐173
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	CU-‐100-‐140	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	CU-‐300-‐339	-‐	-‐	-‐
Hose	.	.	.	.	.	.	-‐	.	.
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 20- 2 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐200-‐227; se
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐	-‐	-‐	CU-‐40-‐342	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 21- 28 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	-‐	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	CU-‐262-‐79; in	-‐	-‐
3-‐basin sink interior	.	.	.	CU-‐294-‐321; in	-‐	CU-‐294-‐321	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	CU-‐262-‐79; se	-‐	-‐
Cutting board	.	.	.	.	.	-‐	-‐	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	CU-‐262-‐79	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐; in	CU-‐11-‐320	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	CU-‐294-‐321	CU-‐11-‐320	-‐	-‐	-‐	CU-‐11-‐320
Deli drain	.	.	.	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐; in	CU-‐262-‐318	-‐; in	-‐	CU-‐262-‐318; in	CU-‐11-‐320; in
Deli floor	.	.	.	CU-‐11-‐320; in	-‐	-‐	-‐	CU-‐11-‐320; in	-‐; in
Cold room floor	.	.	.	CU-‐11-‐320	-‐	CU-‐11-‐320	CU-‐262-‐318	-‐	CU-‐11-‐320; in
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	-‐	.	-‐; in
Standing water	.	.	.	.	.	.	.	CU-‐11-‐320; se	.
Squeegee	.	.	.	-‐	-‐	CU-‐11-‐320	-‐	CU-‐11-‐320; in	CU-‐11-‐320; in
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐; in
Hose	.	.	.	-‐	-‐	.	-‐	-‐	-‐
Trash can	.	.	.	CU-‐11-‐320	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	CU-‐262-‐79	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 22- 14 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	CU-‐258-‐69; in	-‐	CU-‐180-‐231	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	CU-‐258-‐328	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	CU-‐258-‐332	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐; in	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	-‐; in	.	.	.	.	.
Squeegee	.	.	.	.	.	.	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	.	.	.	.	.
Trash can	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	CU-‐258-‐67	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 23- 50 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	-‐	CU-‐259-‐322	-‐	-‐	-‐	-‐
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐; Lspp	-‐
1-‐basin sink interior	.	.	.	CU-‐40-‐96; we	CU-‐296-‐330; we	CU-‐57-‐267; in	CU-‐296-‐330; Lspp	-‐	CU-‐57-‐267
Cutting board	.	.	.	-‐	CU-‐262-‐79	-‐	-‐	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	CU-‐258-‐323; in	CU-‐258-‐322	-‐	-‐	-‐	CU-‐259-‐322; Lspp
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	CU-‐258-‐323	CU-‐258-‐323	-‐	CU-‐258-‐69	-‐	CU-‐258-‐323; in
Deli drain	.	.	.	CU-‐259-‐322	CU-‐258-‐323	CU-‐11-‐320	CU-‐262-‐334; in	-‐	CU-‐258-‐322
Floor adjacent to drain	.	.	.	CU-‐259-‐322	CU-‐262-‐317	CU-‐258-‐322	CU-‐258-‐322	CU-‐258-‐322; in	CU-‐258-‐322
Deli floor	.	.	.	CU-‐258-‐333; in	CU-‐258-‐323	-‐	-‐	-‐	CU-‐11-‐320; in
Cold room floor	.	.	.	CU-‐258-‐322	-‐; in	CU-‐258-‐322	-‐	-‐	CU-‐258-‐69
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐258-‐322	CU-‐259-‐322	CU-‐258-‐67	CU-‐258-‐323	CU-‐258-‐323	CU-‐262-‐79
Standing water	.	.	.	CU-‐82-‐215; we	.	CU-‐298-‐396; in	.	CU-‐258-‐323	-‐
Squeegee	.	.	.	CU-‐259-‐322	CU-‐258-‐322	CU-‐262-‐334	CU-‐259-‐322	CU-‐259-‐322	CU-‐258-‐323; in
Cart Wheel	.	.	.	-‐	-‐	CU-‐258-‐323	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	CU-‐258-‐322	-‐	-‐	-‐	CU-‐259-‐322
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	CU-‐258-‐322	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 24- 45 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	CU-‐11-‐320	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	CU-‐258-‐69	-‐	-‐	CU-‐262-‐79	-‐	-‐
1-‐basin sink interior	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐; in	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	CU-‐262-‐79	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	CU-‐11-‐320	-‐	CU-‐8-‐96	CU-‐258-‐322	-‐; se
1-‐basin sink exterior	.	.	.	.	.	.	.	.	.
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320; se	CU-‐11-‐320; se
Floor adjacent to drain	.	.	.	CU-‐11-‐320	CU-‐8-‐96	CU-‐11-‐320	CU-‐11-‐320; se	CU-‐11-‐320; se	CU-‐11-‐320
Deli floor	.	.	.	-‐	CU-‐11-‐320	CU-‐11-‐320	CU-‐11-‐320	-‐	-‐
Cold room floor	.	.	.	-‐	.	CU-‐11-‐320	CU-‐11-‐320; se	CU-‐11-‐320; se	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	CU-‐301-‐336; se	-‐	-‐
Cold room drain	.	.	.	CU-‐11-‐320	-‐	CU-‐11-‐320	CU-‐8-‐96; se	CU-‐11-‐320; se	CU-‐8-‐96
Standing water	.	.	.	.	.	CU-‐11-‐320	CU-‐11-‐320; se	CU-‐11-‐320	.
Squeegee	.	.	.	CU-‐11-‐320	CU-‐8-‐96	CU-‐305-‐347	CU-‐11-‐320; se	CU-‐11-‐320; se	CU-‐11-‐320; Lspp
Cart Wheel	.	.	.	-‐	CU-‐8-‐96	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	CU-‐333-‐399	-‐	-‐	CU-‐11-‐320
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐11-‐320
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	CU-‐258-‐69
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 25- 1 LM positive sample

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	CU-‐11-‐320	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐; in	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	-‐	-‐	-‐	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	-‐	-‐	-‐	.	.
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 26- 4 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	CU-‐262-‐318	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐	-‐	-‐	CU-‐143-‐316	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	CU-‐143-‐316	CU-‐40-‐96	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 27- 11 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	CU-‐258-‐69; in	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	CU-‐258-‐333	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	.	.	.	.	.	.
Deli drain	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Standing water	.	.	.	.	.	.	.	.	.
Squeegee	.	.	.	.	.	.	.	.	.
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	.	-‐	-‐	-‐	.	.
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐; in	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	CU-‐258-‐69	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 28- 55 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	-‐	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	.	-‐	CU-‐262-‐319
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	.
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐79; se	CU-‐262-‐319; in	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐; in	-‐; se	-‐
Floor/wall junction (1-‐basin)	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐79; se	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐319; se
Deli drain	.	.	.	CU-‐262-‐319	CU-‐262-‐319	CU-‐262-‐319	CU-‐262-‐319	CU-‐262-‐319; se	CU-‐262-‐319
Floor adjacent to drain	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐319	CU-‐262-‐319	CU-‐262-‐319; se	CU-‐262-‐319; se
Deli floor	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐319	-‐	CU-‐262-‐319; se	CU-‐262-‐79
Cold room floor	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐337	CU-‐262-‐319	CU-‐262-‐79; se	CU-‐262-‐319
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	CU-‐262-‐79	CU-‐262-‐79	CU-‐262-‐79; se	CU-‐262-‐79; se	CU-‐262-‐79; se	CU-‐262-‐79
Standing water	.	.	.	CU-‐262-‐79	.	.	CU-‐262-‐79; se	CU-‐262-‐79	-‐
Squeegee	.	.	.	CU-‐262-‐79	CU-‐262-‐319	CU-‐262-‐319; se	CU-‐262-‐79	CU-‐262-‐79; se	CU-‐262-‐319
Cart Wheel	.	.	.	-‐	CU-‐262-‐79	CU-‐262-‐79	-‐	-‐	CU-‐262-‐79
Hose	.	.	.	-‐	-‐	-‐	CU-‐262-‐79; in	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐	-‐	-‐; in	CU-‐57-‐267
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	CU-‐262-‐79	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 29-13 LM positive samples

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐; in	-‐	-‐; in	-‐	-‐
1-‐basin sink interior	.	.	.	CU-‐40-‐96	CU-‐11-‐325	-‐	CU-‐11-‐320	CU-‐40-‐96	CU-‐40-‐96; se
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	CU-‐262-‐79	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	CU-‐262-‐79	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐; in	-‐; in	-‐; in	-‐; in	CU-‐262-‐79; in
Floor adjacent to drain	.	.	.	-‐	-‐; in	CU-‐262-‐79; in	-‐	-‐; in	CU-‐11-‐79; in
Deli floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	CU-‐262-‐79	-‐	-‐; in	-‐	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐; in	-‐; in	-‐; in	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	CU-‐11-‐320	-‐	-‐	-‐	-‐
Trash can	.	.	.	CU-‐262-‐79	-‐	-‐	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Deli 30- 0 LM positive sample

	April	May	June	August	September	October	November	December	January
Pans	.	.	.	.	.	.	.	.	.
Slicer blade	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Slicer case	.	.	.	.	.	.	.	.	.
Deli case	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli case near raw meat	.	.	.	.	.	.	.	.	.
Deli case trays/pans	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
3-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink interior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cutting board	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Rewrap table	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Counter	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room rack	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife juncture	.	.	.	.	.	.	.	.	.
Drying rack	.	.	.	.	.	.	.	.	.
3-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (3-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
1-‐basin sink exterior	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Floor/wall junction (1-‐basin)	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Deli drain	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Floor adjacent to drain	.	.	.	-‐	-‐	-‐; in	-‐; in	-‐; in	-‐; in
Deli floor	.	.	.	-‐	-‐	-‐; in	-‐	-‐; in	-‐
Cold room floor	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
aCold room wall	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cold room drain	.	.	.	.	.	.	.	.	.
Standing water	.	.	.	-‐	-‐	-‐; in	-‐; in	-‐	-‐
Squeegee	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Cart Wheel	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Hose	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Trash can	.	.	.	-‐	-‐	-‐; in	-‐	-‐	-‐
Cleaning draing	.	.	.	.	.	.	.	.	.
Cooler shelf/wall	.	.	.	.	.	.	.	.	.
Slicer knob	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale top	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Scale keys	.	.	.	.	.	.	.	.	.
Case handle	.	.	.	-‐	-‐	-‐	-‐	-‐	-‐
Knife rack	.	.	.	.	.	.	.	.	.
Utensils	.	.	.	.	.	.	.	.	.
Cutting board	.	.	.	.	.	.	.	.	.
Cold room door handle	.	.	.	.	.	.	.	.	.
Carts	.	.	.	.	.	.	.	.	.

- = negative for LM; . = not tested; CU-# = PFGE subtype

a In Phase I, “Cold Room Wall” represented a composite of cold room wall and shelves

Dr. Haley Oliver Publication Data and Supplemental Information

Deli 1­‐ 1 LM positive sample

Deli 2-­ 50 LM positive samples

Deli 1‐ 1 LM positive sample

Deli 2- 50 LM positive samples