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Clinical and Diagnostic Laboratory Immunology, March 2000, p. 298-300, Vol. 7, No. 2
1071-412X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

Identification of Different States of Hepatitis B Virus Infection with a Quantitative PCR Assay

Harald H. Kessler,1,* Sabine Preininger,1 Evelyn Stelzl,1 Elisabeth Daghofer,1 Brigitte I. Santner,1 Egon Marth,1 Herwig Lackner,2 and Rudolf E. Stauber3

Molecular Diagnostics Laboratory, Institute of Hygiene,1 Department of Pediatrics,2 and Department of Internal Medicine,3 Karl Franzens University, A-8010 Graz, Austria

Received 27 August 1999/Returned for modification 15 October 1999/Accepted 15 November 1999

The level of hepatitis B virus (HBV) DNA in serum reflects the replicative activity of HBV. To compare serum HBV DNA levels in different states of hepatitis B, 47 sera of patients with HBeAg-positive chronic hepatitis B, 4 sera of patients with HBeAg-negative chronic hepatitis B, 40 samples of patients after HBeAg seroconversion during alpha interferon treatment, 57 sera of inactive HBsAg carriers, and 42 sera of patients who had recovered from chronic hepatitis B more than 12 months prior to blood collection were checked for the presence of HBV DNA with the Amplicor HBV Monitor Test. In patients with HBeAg-positive chronic hepatitis B, the median of serum HBV DNA levels (8.3 × 108 copies/ml) was significantly higher than that for patients after HBeAg seroconversion (6.2 × 103 copies/ml) and than that for inactive HBsAg carriers (5.6 × 103 copies/ml). None of the patients who had recovered from hepatitis B had detectable HBV DNA in serum. Quantitative PCR proved to be a valuable tool for identification of different states of HBV infection. This technique was found to be a good method for determination of serum HBV DNA levels both for patients with HBeAg seroconversion and for inactive carriers who showed low viremia not detectable by conventional hybridization assays.

* Corresponding author. Mailing address: Molecular Diagnostics Laboratory, Institute of Hygiene, Karl Franzens University Graz, Universitaetsplatz 4, A-8010 Graz, Austria. Phone: 43-316-380-4363. Fax: 49-316-380-9649. E-mail: harald.kessler{at}kfunigraz.ac.at.

Clinical and Diagnostic Laboratory Immunology, March 2000, p. 298-300, Vol. 7, No. 2
1071-412X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.


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