ERP Micro December 2019

B astin et al . : J ournal of AOAC I nternational V ol . 102, N o . 5, 2019  1607

Table 2017.09P. Comparative results for the confirmation of Cronobacter (inclusivity)

Candidate Chromogenic Cronobacter Isolation Agar

Candidate Tryptic Soy Agar

Candidate Enterobacter sakazakii Isolation Agar

Ref. Tryptic Soy Agar

X  a

N  b

Percent PA c

Target

Collaborator

Percent PA

Percent PA

Percent PA

X N

X N

X N

Cronobacter species

1 2 3 4 5 6 7 8 9

16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 15 15 d 16 16 16 16 16 16 16 16 16 16

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

16 16 16 16 16 16 14 16 16 16 16 16 16 16 16 16 15 16 16 16 16 16 13 16 14 16 14 16

100.0 100.0 100.0 100.0 100.0 100.0 100.0 88.0

94.0

10 11 12 13 14

100.0 100.0

81.0 88.0 88.0

a X = Number of correct identifications. b N = Total number of isolates tested. c  PA = Positive agreement. d  No growth observed on agar for one isolate.

Table 2017.09Q. Comparative results for the identification of Gram-negative organisms ( Cronobacter exclusivity)

Candidate Chromogenic Cronobacter Isolation Agar

Candidate Tryptic Soy Agar

Candidate Enterobacter sakazakii Isolation Agar

Ref. Tryptic Soy Agar

X  a

N  b

Percent PA c

Target

Collaborator

Percent PA

Percent PA

Percent PA

X N

X N

X N

Gram-negative organisms

1 2 3 4 5 6 7 8 9

8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

8 8 8 8 8 8 7 7 d 8 8 8 8 8 8 8 8 7 8 8 8 8 8 5 5 e 5 5 e 6 6 f

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 88.0

8 8 8 8 8 8 8 8 8 8 8 8 7 7 d 8 8 8 8 8 8 8 8 8 8 7 7 d 6 6 f

100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

8 8 8 8 8 8 8 8 7 8 8 8 8 8 7 8 8 8 7 8 8 8 7 8 7 8 6 8

100.0 100.0 100.0 100.0

88.0

100.0 100.0

88.0

100.0

10 11 12 13 14

88.0

100.0

88.0 88.0 75.0

a X = Number of correct identifications. b N = Total number of isolates tested. c  PA = Positive agreement.

d  No growth observed on agar for one isolate. e  No growth observed on agar for three isolates. f  No growth observed on agar for two isolates.