Abstract
The performance of a new commercial semi-automatic system (Cobas Micro, Becton Dickinson) for identification of gram-negative fermentative and non-fermentative bacilli was evaluated using strains of clinical origin belonging to 48 different species. Two groups of strains were tested: 510 strains using a long incubation period (21 hours) and 158 strains using a short incubation period (5 hours). The correct identification rate without additional tests was 95.5 % and 94.3 % for the tests using a long and short incubation period respectively. The findings suggest that the system is highly accurate in the identification of most clinically important gram-negative rods, but shows some shortcomings in the identification of non-fermentative bacteria. The system is easy to use, and with some changes in the database and the inclusion of gram-positive and anaerobic bacteria would offer a valuable alternative to currently available automatic identification systems.
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Geiss, H.K., Geiss, M. Evaluation of a new commercial system for the identification ofEnterobacteriaceae and non-fermentative bacteria. Eur. J. Clin. Microbiol. Infect. Dis. 11, 610–616 (1992). https://doi.org/10.1007/BF01961667
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DOI: https://doi.org/10.1007/BF01961667