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Two new types of cell-mediated immune cytolysis of togavirus-infected cells are compared. The peritoneal cavity of mice 2 days after infection contains a nonadherent, non-phagocytic, non-O-bearing, trypsin-resistant, EDTA-sensitive cell displaying broadly specific cytotoxicity for uninfected or virus-infected syngeneic or xenogeneic cell lines. Peritoneal macrophages from normal mice are cytotoxic to infected target cells sensitized with minute amounts of homologous antiviral IgG.
Macfarlan et al. (1977) studied this question.