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1430
C
rowley
et al
.
:
J
ournal of
AOAC I
nternational
V
ol
. 95, N
o
. 5, 2012
Table 3. Inclusivity panel results
a
Collaborating laboratory
Organism
ID No.
Gram
reaction
Culture
medium
b
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Listeria grayi
125274 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Listeria innocua
12524 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + LD
c
+ + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Listeria ivanovii
ssp
.
Ivanovii
12913 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Listeria ivanovii
ssp
.
Londoniensis
12914 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Listeria monocytogenes
12502 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Listeria seeligeri
6217 Gram-positive rods CBA + + LD
d
NT
e
+ + + + + + LD
d
+ + + + + + + + +
TSA + + + NT + + + + + + + + + + + + + + + +
TSAB + LD
d
+ NT + + + + + + + + LD
d
+ + + + + + +
Listeria welshimeri
12517 Gram-positive rods CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + LD
d
+ + + + + + + + + + + + + +
TSAB + + + + + + + + LD
d
LD
d
+ + LD
d
+ + + + + + +
Staphylococcus hyicus
13889 Gram-positive cocci
CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Staphylococcus
intermedius
16409 Gram-positive cocci
CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
Staphylococcus aureus
8819 Gram-positive cocci
CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + LD
f
LD
f
+ + + + + + LD
f
+ +
Staphylococcus aureus
8852 Gram-positive cocci
CBA + + + NT + + + + + + + + + + + + + + + +
TSA + + + NT + + + + + + + + + + + + + + + +
TSAB + + + NT + + + + + + + + + + + + + + + +
Staphylococcus
epidermidis
8890 Gram-positive cocci
CBA + + + + + + + + + + + + + + + + + + + +
TSA + + + + + + + + + + + + + + + + + + + +
TSAB + + + + + + + + + + + + + + + + + + + +
a
+ = Culture was correctly identified by the collaborating laboratory.
b
CBA = Columbia agar with 5% sheep blood, TSA = Trypticase soy agar, TSAB = Trypticase soy agar with 5% sheep blood.
c
Low discrimination between
L. innocua/L.welshimeri
reported by VITEK 2; supplemental tests were conducted to report final identification.
d
Low discrimination between
L.seeligeri/ivanovii/welshimeri
reported by VITEK 2; supplemental tests were conducted to report final identification.
e
NT = Not tested. Isolate was not identified as Gram positive and thus not tested on the VITEK 2 GP card.
f
Low discrimination between
S. aureus/S. intermedius
reported by VITEK 2; supplemental tests were conducted to report final identification.
Candidates for 2016 Method of the Year
266