Abstract
The Titertek Enterobac Rapid Automated System (TTE-RAS; Flow Laboratories, SpA, Milan, Italy), a new semiautomated system for the identification of members of the family Enterobacteriaceae, was compared with the API 20E system (API System P.A., Montalieu Vercieu, France) by using 284 clinically isolated strains that were previously identified by conventional methods. Six strains from the American Type Culture Collection (Rockville, Md.) were included to evaluate the reproducibility of identification by both systems. Correct identifications at the species level were 93.7% with TTE-RAS and 96.1% with API 20E. Although some of the features of the TTE-RAS data base were not satisfactory, we consider this new miniaturized system to be a very valuable tool for the rapid identification of the most frequently isolated opportunistic bacteria.
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