The Relationship Between Different Antibodies

Williams, Anna W.

doi:10.2105/ajph.15.2.129

Cited by 11 publications

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“…The toxic preparations from non-scarlatina strains were neutralised by scarlatina antitoxic serum with the exception of that produced by M. Selected illustrative results of these tests are shown in Table IV. Other observers have noted that culture filtrates of non-scarlatinal streptococci may produce reactions similar to those yielded by culture filtrates of scarlatina strains (Rosenow, 1924(Rosenow, , 1926Paraf, 1925;Williams, 1925). Birkhaug (1925) has obtained toxic filtrates from erysipelas strains, and Lash and Kaplan (1926) from puerperal septicaemia strains.…”

Section: H0jaenwolytic Streptococlimentioning

confidence: 98%

The Specific Toxigenic Properties of Haemolytic Streptococci from Scarlatina and other Sources

Mclachlan

1927

J. Hyg.

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1. Without exception, ninety-eight strains of haemolytic streptococci isolated from scarlet fever cases have been found to produce a toxic principle which in high dilutions is capable of evoking a cutaneous reaction in sus ceptible persons.2. A certain proportion of haemolytic streptococci from other sources possess a similar toxigenic property. In the majority of such cases this property is only weakly developed as judged by quantitative tests. In a few instances a “toxin” is produced which is equally active with that of scarlatina strains.3. Certain non-scarlatina strains produce “toxins” which evoke a cutane ous reaction both in known positive reactors and also in persons who do not react to a standard toxin from a scarlatina strain.4. In the majority of cases the toxins produced by scarlatina strains are neutralised by the scarlatina antitoxic sera at present being used for therapeutic purposes, but a certain proportion of such toxins are not in the neutralised5. The “toxins”produced by non-scaralation strains are in the majority of cases neutralised by the antitoxic sera.

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