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Journal of Clinical Microbiology, June 2000, p. 2150-2155, Vol. 38, No. 6
Department of Virology, University Hospital
Rotterdam, Rotterdam, The Netherlands1;
Toronto Medical Laboratories, The Toronto Hospital, Toronto,
Ontario, Canada2; and Center for Liver
Diseases, University of Miami School of Medicine, Miami,
Florida3
Received 30 September 1999/Returned for modification 28 December
1999/Accepted 10 March 2000
We have evaluated the new Digene Hybrid Capture II HBV DNA Test
(HCII HBV), which is a 96-well microtiter plate-based signal amplification assay. This test uses hybrid capture technology that
specifically detects RNA-DNA hybrids. HCII HBV is able to quantify
hepatitis B virus (HBV) DNA at between 1.4 × 105 and
1.7 × 109 HBV copies per ml in a standard format. By
using a modified sample preparation method, which allows the input of
30-fold more serum for an ultrasensitive format, the sensitivity of the
assay can be increased reproducibly to approximately 8,000 copies of
HBV per ml. By using a combination of these two formats, the assay can
quantify over a total range of 6 logs. In our multicenter evaluation
study, the mean laboratory-to-laboratory coefficients of variation were
22, 7, and 12% at the three sites, respectively, with a combined
specificity of 98.4%. The linearities of both the standard test and
the ultrasensitive test were excellent, with Spearman correlation
coefficients of 0.997 and 0.999, respectively. Furthermore, the
intra-assay reproducibility for the standard assay gave coefficients of
variation of from 13 to 33, 9 to 21, and 3 to 8% at the three sites,
respectively. HCII HBV was shown to be genotype independent when the
EUROHEP standards for genotypes A and D were used. This assay allows
the accurate measurement of HBV DNA levels in serum and can be
clinically used for the monitoring of responses to antiviral agents for
patients chronically infected with HBV.
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
A Multicenter Study Evaluation of the Digene Hybrid Capture II
Signal Amplification Technique for Detection of Hepatitis B Virus
DNA in Serum Samples and Testing of EUROHEP Standards
*
Corresponding author. Mailing address: Department of
Virology, University Hospital Rotterdam, Dr. Molewaterplein 40, 3015 GD
Rotterdam, The Netherlands. Phone: 31-10-463.3431. Fax: 31-10-463.3441. E-mail: niesters{at}viro.fgg.eur.nl.
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