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|Noun||1.||vaccina - 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|
progressive vaccinia, vaccinia gangrenosa - a severe or even fatal form of vaccinia that occurs mainly in persons with an immunological deficiency; characterized by progressive enlargement of the initial lesion
infection - the pathological state resulting from the invasion of the body by pathogenic microorganisms