A pustular, eruptive skin disease of cattle caused by an Orthopoxvirus, with lesions occurring principally on the udder and teats. Human infection may occur from touching cows, and gives immunity to smallpox
A pustular eruptive disease of the cow, which, when communicated to the human system, as by vaccination, protects from the smallpox; vaccinia; called also kinepox, cowpock, and kinepock