Texas A&M University (TAMU) ANSC 108 General Animal Science Laboratory Exam 1 Practice

The disease here is soremouth, also called contagious ecthyma, which is caused by the Orf virus. This infection is zoonotic, meaning it can be transmitted from animals to people. In sheep and goats, it produces crusty scabs around the mouth and muzzle, often extending to the nostrils and sometimes around the eyes. People can acquire lesions after contact with affected animals or contaminated scabs, usually on the hands or arms, and occasionally on the face if the hands touch the eyes or mouth.

The other listed conditions don’t fit this combination. Foot rot affects the feet and isn’t typically a zoonotic disease. Mastitis is an udder infection in dairy animals and isn’t known for causing crusts around the mouth in animals or posing a notable zoonotic risk in this context. Scrapie is a prion disease in sheep and goats and is not associated with crusting around the mouth in animals or with zoonotic transmission to humans.