Dermatofitosis humanas y caninas: ¿existen dermatofitos zoofílicos y antropofílicos?

We study the ethiology of dermatophytosis in humans and dogs in the geographic area of Terrassa (Barecelona) during a period of five years (1988-1992), processing 1038 human samples and 715 from dogs, proceeding to the identification of dermatophytosis ethiological agents using classical mycological methods, and doing sistematically a microscopical direct examination of samples with KOH. In human and in dog cultures, the species more frequent isolated were Microsporum canis and Trichophyton mentagrophytes, and the ratio for positive cultures was 52% and 61%, respectiveiy. The sensibility of KOH method was of 80% and its specifity was 100%.
The conclussions are that, in our zone, the average of positive cultures is high, the KOH direct examination of samples is a valid rapid method for diagnostic evaluation, it ispossible to give a previous report at 10-15 days and is evident the prevalence of zoophylicfungi like human pathogens, but we are in doubt about the classical disyuntive antropophylic-zoophylic, proposing the unical denomination of dermatophyte as an ethiological agent of dermatophytosis.