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Perforin-dependent CTL-mediated killing does not contribute to antibody response. Perforin-knockout (C57BL/6-Prf1tm1Sdz) (n = 8) and C57BL/6 (n = 10) mice were immunized with VSV-MS or VSV-MSC69A. A quantitative HBsAb ELISA was conducted on serum collected 30 and 60 days postimmunization to determine specific antibody titers. All values are presented as the average of each group; error bars represent standard errors.
