Abstract
Reference strains and clinical isolates of Bacteroides and Fusobacterium species were examined by the Anaerobe-Tek system (A/T-system). Of 104 strains, only 57 were identified correctly to species level. 38 strains were incorrectly identified and for 9 strains there were no codes in the manufacturers' data base manual. The results indicate that the A/T-system in its present form is not suitable for the identification of clinical isolates of Bacteroides and Fusobacterium .