TNFRSF1B and infection: After BDV-infection, a significant increase of TNFR2 mRNA levels was measured in all animal cohorts except for the hippocampus in the wild-type mice (copy numbers for the different brain areas: –/–: 1.44×102−3.24×102, Tg/–: 1.83×102−1.81×103, Tg/Tg: 1.26×102−1.19×103 copy numbers; p<0.05−p<0.001, Fig. 7).