Differential diagnoses include [[Sheep Pox]], which is a more severe disease characterized by elevated papules distributed diffusely over the skin surface and high mortality rates are seen. Ulcerative dermatosis is another differential and is also characterized by ulcers and crusts on the skin of the face, feet and genitalia, however the lesions are not elevated because there is no epithelial hyperplasia. [[Bluetongue Virus]] is another differential. There is lower morbidity but a high mortality and the disease is usually seen in adult animals. Mycotic dermatitis is a differential although the scabs are smaller and thinner and lighter and usually yellowish in color, with crusts not firmly attached. [[Foot and Mouth Disease|Foot and mouth disease]] can be a differential when lesions occur in the mouth. | Differential diagnoses include [[Sheep Pox]], which is a more severe disease characterized by elevated papules distributed diffusely over the skin surface and high mortality rates are seen. Ulcerative dermatosis is another differential and is also characterized by ulcers and crusts on the skin of the face, feet and genitalia, however the lesions are not elevated because there is no epithelial hyperplasia. [[Bluetongue Virus]] is another differential. There is lower morbidity but a high mortality and the disease is usually seen in adult animals. Mycotic dermatitis is a differential although the scabs are smaller and thinner and lighter and usually yellowish in color, with crusts not firmly attached. [[Foot and Mouth Disease|Foot and mouth disease]] can be a differential when lesions occur in the mouth. |