Immunity and Cutaneous Sensitization 



27 



TABLE 1. Ri \( noN i<> Oidiomycin \\i> Catarrhal Vaccine oi Patients with 

 Strong Kkaction to Tmchophytin* 



'For all patients, cultural examination yielded fungi. 



stance common to all species of Trichophyton but that each species has 

 a component peculiar to itself. However, the greatest portion of the extract 

 is undoubtedly the same, no matter what the source of the extract. In 

 testing we have used monospecies extracts made from M. audouini, M. 

 lanosum, Trichophyton purpureum and T. gypseum and are able to sub- 

 stantiate the conclusion of Tomlinson and others that a patient who reacts to 

 one type of trichophytin will usually also react to a type made from another 

 species. Thus patients whose skin was sensitized by an infection with T. 

 gypseum had a comparable response when the skin was tested with extracts 



