Enterococci
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Lancefield’s group D is composed of Streptococcus equinus, S. faecalis, S. bovis , and S.faecium. S. avium (Q and D antigens). Group D is found in the intestinal tract of warm-blooded animals. The term “enterococcus” refers only to the species S. faecalis and S.faecium . The medium employed for enumeration of coliforms in foods is KF agar.
