THE CLASSIFICATION OF HEMOLYTIC STREPTOCOCCI

J Exp Med. 1918 Aug 1;28(2):169-80. doi: 10.1084/jem.28.2.169.

Abstract

1. The hemolytic variety of streptococcus is homogeneous, consisting of members that are nearly identical. 2. This homogeneity is most strikingly displayed in the behavior of these streptococci in the complement fixation reaction, all the strains studied reacting in a nearly identical way with all the antisera.