[A new diagnostic scheme for the identification of bacterial species belonging to the Enterobacteriaceae family].

A new diagnostic two-steps scheme for the species identification of enterobacteria was employed with 703 strains. The diagnoses were compared with those obtained by employing Api 20 E and Enterotube II. On the basis of the reported results this new scheme is shown to be reliable (99.71% right diagnosis) and easy to perform.