a viral disease of cattle causing a mild skin disease affecting the udder; used to innoculate humans against smallpox
a viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox
a local infection induced in humans by innoculation with the virus causing cowpox in order to confer resistance to smallpox; normally lasts three weeks and leaves a pitted scar
a local infection induced in humans by inoculation with the virus causing cowpox in order to confer resistance to smallpox; normally lasts three weeks and leaves a pitted scar
