Cytokine RNA levels by PCR. Rows 1, 2, and 3 are IFN-γ; rows 4, 5, and 6 are TNF-; and rows 7, 8, and 9 are IL-10. Naive controls never inoculated with TMEV are rows 3, 6, and 9. TMEV diseased but untransplanted animals are rows 1, 4, and 7. Mice with TMEV treated by transplantation are rows 2, 5, and 8. Assays were performed on day 128.