FIG. 5.

Adoptive-transfer experiment with CD8⁺ T lymphocytes from p1tPASAG1-immunized mice shows partial protection against challenge with RH tachyzoites. CD8⁺ and CD4⁺ T lymphocytes were enriched from mice immunized with p1tPASAG1 or mice immunized with empty vector and injected i.v. into four groups of naïve mice (n = 5). Challenge was performed after 20 h, and survival was monitored.