FIG. 3.

Quantification of selected gene transcripts in the joints of individual mice. Expression levels of the robustly induced IFN-related transcripts listed in Table 4 were determined using quantitative RT-PCR. The amount of change (n-fold) was determined based on the difference between the value for a pooled sample from five individual mice and the average for the uninfected controls and is expressed as the mean ± the standard error. ISCL designations are abbreviated as follows: CB-Bb2Bb3, C3.B6-Bbaa2-Bbaa3; BC-Bb2Bb3, B6.C3-Bbaa2-Bbaa3; CB-Bb4, C3.B6-Bbaa4; and BC-Bb4, B6.C3-Bbaa4.