4. AOACRIMicroMethods-2018Awards

199

C rowley et al . : J ournal of AOAC I nternational V ol . 95, N o . 5, 2012  1431

CBA UI c UI c – – UI c – UI c UI c – UI c UI c – MI d – UI c – UI c – – –

TSA UI c UI c – – UI c – UI c UI c – UI c UI c – MI d – UI c – UI c – – –

TSAB UI c UI c – – UI c – UI c UI c – UI c UI c – MI d – UI c – UI c – – –

Serratia marcescens 111663 Gram-negative rods CBA – – – – – – – – – – – – – – – – – – – – TSA – – – – – – – – – – – – – – – – – – – – TSAB – – – – – – – – – – – – – – – – – – – – Aspergillus niger 304232 Hyphae CBA – – – – – – – – – – – – – – – – – – – – TSA – – – – – – – – – – – – – – – – – – – – TSAB – – – – – – – – – – – – – – – – – – – – Candida albicans 305527 Yeast CBA MI f – – – – – – MI f – – – – – – – – – – – – TSA MI f – – – – – – MI f – – – – – – – – – – – – TSAB MI f – – – – – – MI f – – – – – – – – – – – –

Escherichia coli 112380 Gram-negative rods CBA – – – – – – – – – UI e – – – UI e – – – – – – TSA – – – – – – – – – UI e – – – UI e – – – – – – TSAB – – – – – – – – – UI e – – – UI e – – – – – –

Citrobacter freundii 110125 Gram-negative rods CBA – – – – – – – – – – – – – – – – – – – – TSA – – – – – – – – – – – – – – – – – – – – TSAB – – – – – – – – – – – – – – – – – – – –

medium b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Collaborating laboratory

Culture

Table 4. Exclusivity panel results a Organism ID No. Gram reaction Bacillus coagulans 202608 Gram-positive rods with endospores

a  – = Culture was correctly screened as an exclusive organism and was not tested by the VITEK 2 GP method. b  BA = Columbia agar with 5% sheep blood, TSA = Trypticase soy agar, TSAB = Trypticase soy agar with 5% sheep blood. c UI = Unidentified organism. Organism was incorrectly screened by Gram stain procedures and tested by VITEK 2 GP, which is not inclusive of Bacilli. d MI = Misidentified as Streptococcus mitis after organism was incorrectly screened by Gram stain procedures and tested by VITEK 2 GP, which is not inclusive of Bacilli. e UI = Unidentified organism. Organism was incorrectly screened as a Gram positive rod by Gram stain procedures and tested by VITEK 2 GP. f MI = Misidentified as Kocuria varians . Organism was incorrectly screened by Gram stain procedures and tested by VITEK 2 GP.

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