Stimulated mouse peritoneal macrophagcs were studied to determine the mechanism by which they express resistance to vaccinia virus. Macrophages from non-immunized animals were harvested and infected with vaccinia in vitro. ...

In vitro systems of pulmonary-alveolar macrophages from normal and vaccinia-immunized rabbits and their counterparts from rabbits stimulated by complete Freund's adjuvant we~ tested for their resistance to the IHD strain ...