What are dermatophytes?

• Contamination by: • Human: anthropophilic species (Trichophyton rubrum, interdigital T., T. violaceum, T. soudanenese, T. tonsurans ...) • Contamination, direct or, most often, indirect by soils (dander) , combs, brushes, clothing, scarves hats. . . ; frequent contamination in sports (pool, gym), collective showers, school cloakroom; contamination favored by maceration (obese pleats, insufficient drying, closed or safety shoe, repeated contact with water ...); risk of epidemic in case of ringworm • Animal (mammal): zoophile's species (Microsporum canis, T. mentagrophytes); transmission by wild animals or pets; not adapted to humans, these dermatophytes can induce inflammatory lesions • Telluric: geophilic species (M. gypseum ...); transmission either directly from the ground (soil, sand) during a small lesion, or by a vector