TABLE 5.

Comparison of levels of accuracy of identification between ID-GNB and GNI+ cardsa

Reference identificationTotal no. of isolates testedNo. of isolates with the indicated identification with the following cardb:
ID-GNBGNI+
Correctly identifiedUnidentifiedErrorCorrectly identifiedUnidentifiedError
Cedecea davisae6516
Cedecea lapagei4431
Citrobacter amalonaticus107110
Citrobacter braakii5531
Citrobacter farmeri5341
Citrobacter koseri109191
Citrobacter youngae4322
Edwardsiella tarda1071811
Enterobacter aerogenes109110
Enterobacter asburiae109182
Enterobacter cancerogenus1071110
Enterobacter cloacae10619
Enterobacter gergoviae101091
Enterobacter sakazakii101010
Escherichia coli302431272
Escherichia fergusonii101081
Escherichia hermannii109191
Escherichia vulneris1081721
Ewingella americana10910
Hafnia alvei99711
Klebsiella ornithinolytica101010
Klebsiella oxytoca10710
Klebsiella pneumoniae subsp. ozaenae109110
Klebsiella pneumoniae subsp. pneumoniae10810
Klebsiella pneumoniae subsp. rhinoscleromatis10910
Kluyvera ascorbata-K. cryocrescens1081212
Leclercia adecarboxylata8871
Moellerella wisconsensis8871
Morganella morganii10910
Pantoea agglomerans76152
Proteus mirabilis10810
Proteus penneri86171
Proteus vulgaris999
Providencia alcalifaciens7761
Providencia rettgeri8871
Providencia rustigianii222
Providencia stuartii141414
Rahnella aquatilis222
Salmonella enterica subsp. arizonae76152
Salmonella group000
Salmonella enterica serotype Cholerae-suis2211
Salmonella serotype Paratyphi A212
Salmonella enterica serotype Typhi222
Salmonella enterica serotype Typhimurium111
Serratia fonticola1073812
Serratia liquefaciens group108191
Serratia marcescens101091
Serratia odorifera101010
Serratia plymuthica10791
Serratia rubidaea10910
Shigella group (three species)641151
Shigella sonnei4314
Yersinia enterocolitica group (four species)18181611
Yersinia pseudotuberculosis631151
    Total45439218114032221
  • a Numbers in the correctly identified, unidentified, and error columns may not add to the total number. Identifications at the low level of accuracy were not included.

  • b A total of 410 (90.3%) strains were correctly identified with the ID-GNB card (error rate, 2.4%), whereas a total of 425 (93.6%) strains were correctly identified with the GNI card (error rate, 4.6%).