204-205 / 471
1
2
3
4
5
Table 4. Individual Collaborator Results for Deli Turkey
High-Level Test Portions
Low Level Test Portions
Un-inoculated Test Portions
1
2
3
4
5
6
7
8
9 10 11 12 1
2
3
4
5
6
7
8
9 10 11 12 1
2
3
4
5
6
7
8
9 10 11 12
3M MDA
Listeria monocytogenes
Lab
1
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
-
-
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
2
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
-
-
+
d
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
d
-
-
+
-
-
-
-
-
-
-
-
c
-
-
-
-
-
5
b
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
6
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
c
-
+
+
+
-
-
-
+
+
-
-
-
-
-
-
-
-
c
-
-
-
-
7
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8
b
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
n/a
-
n/a
+
+
+
-
-
-
-
-
-
-
-
c
+
n/a
n/a
n/a
-
+
9
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
10
b
+
+
+
+
+
+
d
+
+
+
+
+
+
+
+
-
-
+
+
-
-
-
+
+
-
+
+
d
+
+
+
-
-
-
+
d
+
-
-
11
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
-
-
-
+
d
-
-
-
-
-
-
-
-
-
-
-
-
12
b
n/a
n/a
n/a n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
14
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
-
-
c
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
+
+
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
16
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
-
-
-
+
+
+
+
-
-
-
-
+
d
-
-
-
-
-
-
-
USDA/FSIS – MLG 8.09
1
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
+
+
+
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
3
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
-
5
b
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
6
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
-
-
-
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
7
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
-
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
8
b
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
-
-
-
+
-
-
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
9
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
10
b
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
+
+
+
+
+
-
+
-
+
+
-
+
-
11
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
-
-
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
12
b
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
13
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
+
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
14
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
+
+
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
15
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
+
+
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
16
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
-
+
+
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
a
+=
Listeriamonocytogenes
were detected in samples; -=
Listeria monocytogenes
were not detected in sample; n/a- lab did not participate in this matrix or results were not received
b
Results were not used in statistical analysis due to laboratory error;
c
Sample was presumptive positive on 3M MDA
Listeria monocytogenes
but confirmed negative indicating a false positive
result;
d
Sample was presumptive negative on 3M MDA
Listeria monocytogenes
but confirmed positive indicating a false negative result
Candidates for 2016 Method of the Year
166