Dermatophytosis is an contagious disease of keratinized tissue (skin, hair, and claws) by one of the three genera of fungi collectively called dermatophytes—Epidermophyton, Microsporum, and Trichophyton. Epidermophyton occurs only in human being. Microsporum, and Trichophyton.occur in cattle, sheep & goat, horse, pig, dog & cat.
Transmission: Transmission occur by direct conduct of the affected animal and indirect contact occurs if skin is abraded or bruised by grooming implements following grooming of affected animal. Ringwors attack the keratinized tissue particularly the stratum corneum and hair fibres.
Zoonotic implications: Human are frequently infected with ringworm fungi of animal origin through direct contact with infected animal, their bedding, hair clipping, cages etc.
Clinical Signs:
Cattle- In cattle, generalized lesions may occur throughout the body surface in calves; in cow and heifer occur in chest and in bulls dewlap and intermaxillary space. The lesions are – dicrete, roughly circular about 3-4 cm in diameter, raised above the skin. Scaling patches of hair loss with grey-white crust but with no itching; suppuration may occur.
Dermatophytosis
