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Abstract
Summary
Pyogenic streptococci of Lancefield group C or group G from human or animal sources were examined with a view to increasing the number of diagnostic tests useful for their differentiation. Human strains of group G produced L-prolyl-L-arginine aminopeptidase but isolates of Streptococcus equisimilis (group C) did not. Tests for α-L-glutamate aminopeptidase together with fermentation of glycogen or sorbitol distinguished S. dysgαlαctiαe from strains of S. equisimilis isolated from animals. It was confirmed that fermentation tests were helpful in the study of S. equi and S. zooepidemicus and that enzyme reactions helped distinguish between S. cαnis and the human strains of group G.
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Copyright 1994, The Pathological Society of Great Britain and Ireland