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Article
June 1935

REACTIONS TO TRICHOPHYTIN COMPARED WITH REACTIONS TO OTHER BACTERIAL PRODUCTS

Arch Derm Syphilol. 1935;31(6):819-827. doi:10.1001/archderm.1935.01460240044004

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Abstract

REACTIONS TO SIMULTANEOUS INTRADERMAL INJECTIONS OF MEASURED AMOUNTS OF TRICHOPHYTIN AND VARIOUS VACCINES  Intradermal injections of trichophytin and other bacterial products are in general use. It occurred to us to try simultaneous intradermal injections of more than one such product in the same person.In ordinary practice the amount of trichophytin or bacterial vaccine injected is measured in fluid bulk. The technician uses 0.1 cc. of a definite dilution. In this series of studies it was decided to use another method of measurement. The nitrogen content of trichophytin and various bacterial products has been measured, but as far as we know no one has previously used equivalent amounts of nitrogen in various products for intradermal diagnostic injection as a basis for the comparison of reactions.

Equivalent Volume.—  Table 1 gives the reactions of two patients to a series of intradermal injections of trichophytin and other bacterial products and the amount

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