Fig. 6
From: Signature of chronic hepatitis B virus infection in nails and hair
Immunohistochemical staining of fingernail from a patient with chronic HBV and HDV dual infections (no. HDV-14). Original magnification =  ×400. A Hepatitis D antigen was detected at the edge of the nail. C Hepatitis D antigen was detected inside of the nail. B, D are the negative controls (mouse IgG1). E, F Negative control. immunohistochemical staining of fingernail from a serum HBsAg negative subject. Original magnification =  ×400