[The degree of DNA homology in enterococci].

Studies carried out by the method of DNA-DNA hybridization have confirmed that Enterococcus faecalis, S. faecium and S. durans are independent species. As revealed in these studies, S. faecalis are homogeneous, genetically related and form an independent, sharply defined species, while S. faecium form a heterogeneous species. Mobile enterococci with yellow pigmentation must not be classified with both S. faecalis and S. faecium.