Dermatophyte Infection

Dermatophyte infection, also known as dermatophytosis or tinea, is a common fungal infection caused by keratinophilic fungi belonging to the genera Trichophyton, Microsporum, and Epidermophyton. These fungi infect the keratinized layers of the skin, hair, and nails, leading to various clinical manifestations depending on the site of infection and the causative species. Dermatophytes are classified into three ecological groups: anthropophilic (adapted to humans), zoophilic (primarily infect animals but can transmit to humans), and geophilic (soil-dwelling). Anthropophilic species typically cause non-inflammatory, chronic infections, while zoophilic and geophilic species are more likely to induce inflammatory responses in humans. As one of the most prevalent zoonotic diseases, dermatophytosis presents a significant public health concern, with transmission often occurring through direct contact with infected individuals, animals, or contaminated soil.