Studies on Hemolytic Streptococci

Abstract

In this paper is described a group of hemolytic streptococci distinguished from Strep. pyo-genes by inability to ferment salicin. The group includes about 10% of scarlet fever strains in the collection. From a review of the literature it is concluded that the logical designation of this group is S. scarlatinae. The species name anginosus is a synonym. Agreeing with the findings of other investigators the data show-that S. scarlatinae may cause scarlet fever or sore throat without a rash, but that it is rarely, if ever, the cause of other diseases. The strains of this group are weak in their ability to dissolve human fibrin.