Hepatitis B virus DNA in the sera of HBsAg carriers: A marker of active hepatitis B virus replication in the liver
Ferruccio Bonino, Bill Hoyer, Judith Nelson, Ronald Engle, Giorgio Verme, John Gerin – 1 September 1981 – Sera and liver biopsies from 30 Italian patients, carriers of HBsAg for at least 3 years, were examined for markers of hepatitis B virus (HBV) infection by serological assays and immunofluorescence. Biopsies were analyzed for HBcAg, HBsAg, and δ antigen by immunofluorescence; sera were assayed for HBsAg/anti‐HBs, HBcAg/anti‐HBc, HBeAg/anti‐HBe, δ/anti‐δ, HBV‐specific DNA polymerase activity and the presence of HBV DNA.