|Description:||From the “Illustrated Manual for the Recognition and Diagnosis of Certain Animal Diseases”, published in 1982, by the Mexico-United States Commission for the Prevention of Foot and Mouth Disease, this photograph depicts a close-up view of a bovine muzzle, which displayed a single large lesion on the upper lip due to a case of bovine papular stomatitis (BPS).|
Caused by a virus belonging to the family Poxviridae, and the genus Parapoxvirus, “BPS is a widely-distributed disease, which produces popular, and occasionally erosive lesions on the muzzle and buccal mucous membranes of young cattle. Though primarily a disease of calves, the virus can affect [humans], also causing skin lesions."
"Clinically, symptoms may include a transient anorexia or a slight fever, but in most instances the disease goes unnoticed, unless a careful examination of the mouth is performed. Lesions are usually confined to the muzzle, nostrils, and the buccal mucosa. The vast majority of infected animals survive without serious harm, and are therefore, not subjected to necropsy."