Evaluation of trichophyton agars for identification of Trichophyton soudanense.

Studies of three monoconidial subcultures of each of 10 isolates of Trichophyton soudanense on seven trichophyton agars revealed variations in growth among the subcultures of each isolate and among the isolates themselves on six agars. In contrast, greater consistency and generally good to excellent growth were noted with all isolates on trichophyton agar 1 (basal medium). These results are contrary to those found with other Trichophyton species and suggest that growth on the trichophyton agars is not a suitable test for the identification of T. soudanense.