Immunity and Cutaneous Sensitization 29 



(cl) Infection does not always mean sensitization to trichophytin. 

 -Perhaps the lack of understanding of this fact has led to the belief of 

 many physicians that trichophytin docs not elicit specific reactions. Saeves 



noted that E. inguinale and M. audouini failed to sensitize the skin, and 



TABLE 3.— Reaction to Trichophytin \\i> Oidiomycin of Patients with Strong 

 Reaction to Catarrhal Vaccine* 



"For all patients, fungous examination gave negative results. 



Stein reported that patients with favus reacted negatively to trichophytin. 

 Muskatblit and Director reported the reaction of a series of 48 patients 

 with culturally proved fungous infection and noted a variation in the 

 response according to the species of infecting organism. In Table 4 may 

 be found our results in testing with trichophytin 254 patients who had 



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