| Literature DB >> 19868942 |
Abstract
The applicability to the non-hemolytic streptococci of the technique used for the extraction of a soluble precipitating substance from the hemolytic streptococci is demonstrated. With this substance as antigen, it is demonstrated by means of precipitation and complement fixation that the non-hemolytic streptococci form an antigenically distinct, but entirely heterogeneous group. Such cross-reactions as do occur within this group are not useful in the systematic classification of these organisms.Year: 1924 PMID: 19868942 PMCID: PMC2128614 DOI: 10.1084/jem.40.5.575
Source DB: PubMed Journal: J Exp Med ISSN: 0022-1007 Impact factor: 14.307