Abstract
Detection of hepatitis B virus (HBV) DNA is particularly important for detection of early acute and of occult HBV infection. On the other hand, HBV DNA detection and quantification are essential to diagnose and treat chronic HBV infection. In this study, we evaluated the performance of the real-time PCR SUMASIGNAL VHB (un paso) (Immunoassay Center, Cuba). The clinical and analytical specificity of the assay was 100%. Intra-assay and inter-assay coefficients of variation ranged from 0.50 to 2.53% and from 1.23 to 3.03%, respectively. A strong correlation (r=0.926; P<0.001) with the COBAS® AmpliPrep/COBAS® TaqMan® HBV Test, v2.0 (Roche Molecular Systems, Inc.) was obtained. The limit of detection using the third WHO international standard for HBV DNA was 377.47 IU/mL. The test was able to detect the most prevalent HBV genotypes (A-G) equally well. In conclusion, the SUMASIGNAL VHB (un paso) is a sensitive, specific, precise and accurate assay for the quantification of serum and plasma HBV DNA. Thus, this simple and fast real-time PCR test can be used as an aid in diagnosing an HBV infection and monitoring drug efficacy.
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