Dermatophytoses in Animals
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- Chermette, R., Ferreiro, L. & Guillot, J. Mycopathologia (2008) 166: 385. doi:10.1007/s11046-008-9102-7
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Dermatophytoses are one of the most frequent skin diseases of pets and livestock. Contagiousness among animal communities, high cost of treatment, difficulty of control measures, and the public health consequences of animal ringworm explain their great importance. A wide variety of dermatophytes have been isolated from animals, but a few zoophilic species are responsible for the majority of the cases, viz. Microsporum canis, Trichophyton mentagrophytes, Trichophyton equinum and Trichophyton verrucosum, as also the geophilic species Microsporum gypseum. According to the host and the fungal species involved, the typical aspect of dermatophytic lesions may be modified. As a consequence, an accurate clinical examination, a good differential diagnosis and laboratory analyses are required for a correct identification. Few antifungal agents are available and licenced for use in veterinary practice, and the use of systemic drugs is limited in livestock due to the problems of residues in products intended for human consumption. The high resistance of the dermatophyte arthroconidia in the environment, the multiplicity of host species, and the confinement of animals in breedings are cause of an enzootic situation in many cases. Prevention is difficult, but research development on the immune response to dermatophytes and the use of vaccination, especially in cattle, have brought some interesting results.