[Occurence of an outbreak of horse dermatophytosis caused by the fungus Trichophyton equinum].

There is a description of equine dermatophytosis enzootic, caused by the microscopic fungus Trichophyton equinum. The disease affected 32 horses, mostly young, all in the same herd (74.4%). The diseased horses were successfully treated with the preparation Fenoform forte, applied superficially at the concentration of 0.5% of the active substance. The authors made an attempt to determine the criteria for clinical differentiation of fully developed trichophytosis and microsporosis of horses. Trichophytosis (T. equinum) is characterized as typical numerous small and round patches, covered by small, bran-like, asbestos-coloured scales. Microsporosis (M. equinum) is adequately characterized by irregularly limited patches, often overlapping (15 X 20 cm), by pronounced desquammation, and accumulation of large, lime-white scales, firmly adhering to the base. It is recommended for an exact testing of the etiology of the infection to examine the lesions microscopically and by cultivation.