*******optochin negative - other streptococci
***beta hemolytic
****Lancefield antigen test*****group A - ''S. pyogenes''****Lancefield *group B - ''S. agalactiae''****Lancefield *group C - ''S. dysgalactiae''****Lancefield *group D - ''S. bovis'', ''E. faecalis'', ''E. faecium''****Lancefield *group G - ''S. dysgalactiae''