Figure 2From: Complications post renal transplantation: literature focus on BK virus nephropathy and diagnostic tools actually availableImmunohistochemistry, peroxidase stain, diaminobenzidine as marker, staining for BK polyoma virus with the antibody targeting the SV40 antigen. Note easily detectable, strong nuclear immunoreactivity in tubular cells. (350×), (41).Back to article page