ArticleJournal of clinical laboratory analysis2012
Study of hepatitis B prevalence in parallel with the most frequent HBV genotype in South Iranian blood donors.
Article in Journal of clinical laboratory analysis, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 2 institutions in 1 country.
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Abstract
backgroundHepatitis B virus (HBV) is one of the leading causes of acute and chronic liver diseases and in turn responsible for a million of worldwide annual deaths. HBV has been classified into eight main groups, designated as A-H with different geographical distribution. Some genotypes are associated with different clinical outcomes and particular viral mutations. Current study was aimed to investigate the genotype and prevalence of HBV in blood donors of south of Iran.
methodsThis experimental study investigated the prevalence of HBV positivity in 198,289 Iranian blood donors from south of Iran by both ELISA- and PCR-based methods. Within 198,289 donors, 120 HBsAg(+) cases were selected, HBV-DNA was extracted, and the p gene sequences were amplified by nested-PCR. The HBV genotypes were determined by direct sequencing of the polymerase gene of HBV. Phylogenetic trees also were constructed by the neighbor-joining (NJ) method.
resultsFindings of this study indicated that 0.184%, 0.329%, and 0.215% of blood donors were HBsAg(+) among Isfahan, Kerman, and Yazd provinces, respectively. Only 69 (57.5%) cases of 120 HBsAg(+) donors were HBV-DNA(+) . Sequencing analysis revealed that all of HBV-infected donors had the D genotype of HBV.
conclusionsIn conclusion, the prevalence of genotype D was 100% in Iranian HBV blood donors. These findings may have an impact on the immunological and genetic diagnosis of HBV, selection of diagnostic kits, and viral quality control panels to evaluate diagnostic methods.
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