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horsepoxA virus of the genus Orthopoxvirus that causes pox lesions—which are first papular, then vesicular—on the muzzle, buccal mucosa, and less commonly on the skin of the fetlocks of horses.
a disease caused by a poxvirus in the genus Orthopoxvirus and characterized by typical pox lesions on the lower limbs or around the muzzle. See also pox. Called also Jenner's horsepox, contagious pustular stomatitis.
see canadian horsepox.