Description and evaluation of the semiautomated 4-hour ATB 32E method for identification of members of the family Enterobacteriaceae

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Abstract
A study was performed to compare the rapid identification system ATB 32E (API-bioMérieux SA, La Balme-les-Grottes, France) with conventional biochemical methods for identifying 414 isolates of the family Enterobacteriaceae and the genus Aeromonas, mainly of clinical origin. Overall, 395 strains (95.4%) were correctly identified, with 48 (11.6%) requiring extra tests for complete identification. Ten strains (2.4%) were not identified, and nine (2.9%) were misidentified. The ATB 32E is a suitable alternative for rapid identification of members of the family Enterobacteriaceae.