Epitope-specific CD8+ T-cell response of RA59-gfp/gp33-infected mice to gp33 and S598, as measured by intracellular IFN-γ expression. Four-week-old B6 mice were infected either i.p. with 104 PFU (A) or i.c. with 2 × 103 PFU (B). At either 8 (A) or 7 (B) days postinfection, mice were sacrificed, and mononuclear cells were harvested from the spleen and brain. IFN-γ assays were carried out to determine the percentage of CD8+ T cells specific for S598 or gp33 as indicated. Data shown are derived from pooled samples from three to five mice.
intracranial inoculation,
. This level of S598 epitope-specific CD8+ T cells is the same even when the S510 epitope is expressed