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Lancefield extract of group A streptococci type 15 acts like an anti-human IgG with restricted specificity
Acta Pathologica Et Microbiologica Scandinavica. Section C, Immunology
|February 1, 1978
Abstract:
Lancefield extract of streptococci group A type 15 precipitates certain human sera and agglutinates red cells coated with some IgG anti-Rh antibodies. The frequency of precipitation varies between populations. The serum component in the precipitate is IgG. The results indicate that an iso-allotypic marker is detected by the extract.