Product Summary and Explanation
In 1969, Taplin et al. developed this medium for the isolation and recognition of dermatophytic fungi, the causative agent of
ringworm from hair, nails, and skin.1,2 Dermatophyte Test Medium is preferred for isolation and early recognition of
Microsporum, Trichophyton, and Epidermophyton genera because of a distinct color change in the medium. Rapidlygrowing
species may produce a complete color change in the medium in 3 days. The slower-growing species will change
the indicator in longer time periods. Other organisms may grow, but can be recognized as nondermatophytes by lack of a
color change. A few organisms, including saprophytes, yeasts, and bacteria are capable of changing the medium from red
to yellow, but are easily recognized by their distinctive colonial morphology