1887

Abstract

SUMMARY: Gel-diffusion precipitin tests showed that the Streptococcus group D antigen, as usually demonstrated by ring-precipitin tests, was serologically identical in all four species (). Cell walls of representative cultures of all group D species had a similar chemical composition (determined by chromatograpy) as found by other workers. The one strain of examined lacked galactosamine which was present in the cell walls of the other group D species. The group D specific antigen was found in the residue (cell contents) after the cell-wall fraction had been removed, unlike the group A specific antigen which forms an integral part of the cell wall.

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/content/journal/micro/10.1099/00221287-23-2-335
1960-10-01
2023-02-08
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