Figure 1From: Persistent infections after natural transmission of bovine viral diarrhoea virus from cattle to goats and among goatsImmunohistochemistry of a skin biopsy of the initial PI goat. The immunohistological analysis of a snap frozen skin biopsy of the initial PI goat shows the presence of BVDV antigen (red staining) in epithelial cells of the hair root shaft as typically seen in PI cattle [48]. C16 antibody, 20× magnified.Back to article page