Following infection or mock-infection (i.e., control cells) with the four strains of BVDV, the Mo-DC were stained for MHCI, MHCII, or CD86 and fixed at 0, 1, 6, 12, 24, 48, and 72 hour(s) to determine the effects of infection on cell surface expression. This evidence concerns the gene CD86 and infection.