Over-represented transcription factor binding sites in the promoters of genes differentially expressed between tissue groups of three non-infected animals.

*NTS: not targeted site; PIS: persistent infection site; PRS: primary replication site; SRS: secondary replication site; -up: up-regulated in the groups; and -down: down-regulated in the group -up: up-regulated expression in the tissue group; and -down: down-regulated expression in the tissue group.