In acute PPR, the carcass is dehydrated and soiled. Nostrils are encrusted with a mucopurulent exudate, and the epithelium is necrotic and eroded. The animal has severe conjunctivitis, necrosis of epithelium at the edges of the eyelids, and a mucopurulent exudate matting the eyelids closed.
Lips are hyperemic.
Oral lesions vary from a few erosions on the soft palate to extensive necrosis and erosions on the inside of the lips, commissures of the cheeks, gums, tongue, and hard and soft palate. Lesions in the small intestine are usually not remarkable. According to the literature, lesions similar to those in rinderpest sometimes occur. Lymph nodes are enlarged and edematous. The spleen may be slightly enlarged and congested.