Levels of Viraemia in Subjects with Serological Markers of Past or Chronic Hepatitis B Virus Infection
- 1 January 2000
- journal article
- Published by Informa UK Limited in Scandinavian Journal of Infectious Diseases
- Vol. 32 (3), 249-252
- https://doi.org/10.1080/00365540050165866
Abstract
Subjects with serological markers for a past HBV infection may still have HBV DNA in their serum, but the levels of viraemia in such cases are not known. In the present study, of 63 consecutive HBsAg-negative, anti-HBc-positive serum samples with or without anti-HBs, 20 were HBV DNA-positive as analysed by a highly sensitive quantitative PCR, the Cobas Amplicor HBV Monitor test. However, all of these 20 samples had viraemia levels below 1000 copies/ml, compared with median viraemia levels of 10(8.6) and 10(4.3) copies/ml, respectively, in 98 HBeAg-positive and 124 HBeAg-negative HBsAg carriers. There was no difference in viraemia between subjects with anti-HBc alone compared with both anti-HBs and anti-HBc, nor between those with or without hepatitis C virus antibodies. The findings indicate that HBsAg-negative subjects may retain a low infectivity. Their risk for progressive liver damage is probably low, but this deserves further study.Keywords
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