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Lesions commonly occur followng heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.
Lesions commonly occur followng heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.
Equine dermatophilosis
===Equine dermatophilosis===
Three clinical syndromes have been documented: rain scald, Mud fever and grease heel.
Three clinical syndromes have been documented:
*rain scald
*Mud fever
*Grease heel.
Typically hair becomes matted and focal lesions develop into crusts and thick scabs covered by layers of yellow-green pus. When scabs are removed the hair is taken with them and alopecia results. Rain scald commonly affects the dorsum, shoulders and neck. It can however extend to lower portions of the body and abdomen. It typically begins as small rough raised bumps and can go un-noticed in0 long haired regions. Mud fever looks similar to rain scald but affects the pasterns and distal limbs. White legs and white- skinned areas are most commonly affected. Grease heel is a disease complex which presens in the same way as rain scald and mud fever over the heels. It produces a grey exudate which feels greasy to touch. The disease complex can involve dematophilosis as well as a number of other conditions including dermatophytosis, pastern folliculitis, pyoderma, photosensitisation, contact dermatitis and chorioptic mange.
Typically hair becomes matted and focal lesions develop into crusts and thick scabs covered by layers of yellow-green pus. When scabs are removed the hair is taken with them and alopecia results. Rain scald commonly affects the dorsum, shoulders and neck. It can however extend to lower portions of the body and abdomen. It typically begins as small rough raised bumps and can go un-noticed in0 long haired regions. Mud fever looks similar to rain scald but affects the pasterns and distal limbs. White legs and white- skinned areas are most commonly affected. Grease heel is a disease complex which presens in the same way as rain scald and mud fever over the heels. It produces a grey exudate which feels greasy to touch. The disease complex can involve dematophilosis as well as a number of other conditions including dermatophytosis, pastern folliculitis, pyoderma, photosensitisation, contact dermatitis and chorioptic mange.
Prolonged wetting of inected areas can lead to secondary bacterial infection which can result in limb oedema and cellulitis.
Prolonged wetting of inected areas can lead to secondary bacterial infection which can result in limb oedema and cellulitis.
Ovine dermatphilosis
**Papules, serous, exudative matting of hair, raised crusty scabs
**Papules, serous, exudative matting of hair, raised crusty scabs