TABLE 1.

ID results for gram-negative bacilli

GroupNo. testedNo. (%) of ID results:Phoenix ID (n = 1)Comparator system ID
SpeciesIsolatesConcordantDiscordantNo IDATBVITEK 2
Enterobacteriaceae 27384378 (98.4)5 (1.3)1 (0.3) Escherichia coli C. freundii C. freundii
Citrobacter freundii E. cloacae E. cloacae
Enterobacter cloacae K. oxytoca K. oxytoca
Morganella morganii P. stuartii a No ID
Shigella boydii E. coli a No ID
No ID C. freundii C. freundii
Nonfermentersb11110109 (99.1)1 (0.9) Pasteurella multocida B. cepacia a No ID
Total38494487 (98.6)6 (1.2)1 (0.2)
  • a ATB ID had an unacceptable profile or insufficient discrimination.

  • b Including one fermentative oxidase-positive strain of Aeromonas sp.