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residual risk of transfusion-transmitted viral infections in shenzhen, china, 2001 through 2004.there are no current estimates of the residual risks of transmission by blood of hepatitis b virus (hbv) or hepatitis c virus (hcv) and human immunodeficiency virus (hiv) in china. such estimates are an essential prerequisite to monitoring and improving transfusion safety as well as supporting evidence based assessment of the value of implementing new screening interventions.200717319836
[analysis of hiv/syphilis/hcv infection among drug users in 15 cities, china].to study the hiv infection rate and relevant behavioural characteristics among drug users (dus) in the 15 cities of china-gates hiv/aids program.201021215121
hcv subtype characterization among injection drug users: implication for a crucial role of zhenjiang in hcv transmission in china.hcv transmission is closely associated with drug-trafficking routes in china. however, the transmission route of hcv in eastern china remains unclear. here, we investigate the role of zhenjiang city of jiangsu province, an important transportation hub linking shanghai with other regions of china, in hcv transmission.201121304823
infection status and risk factors of hiv, hbv, hcv, and syphilis among drug users in guangdong, china--a cross-sectional study.china has witnessed a remarkable increase in sexually transmitted infections (stis) and hiv. the study is to assess the prevalence of hiv, hbv, hcv and syphilis and related risk factors among drug users in mandatory detoxification center qingyuan, guangdong, china.201021040549
new trends of hcv infection in china revealed by genetic analysis of viral sequences determined from first-time volunteer blood donors.recently, we studied hepatitis c virus (hcv) sera-prevalence among 559 890 first-time volunteer blood donors in china. from randomly selected 450 anti-hcv positive donors, we detected hcv rna in 270 donors. in this study, we amplified hcv e1 and/or ns5b sequences from 236 of these donors followed by dna sequencing and phylogenetic analysis. the results indicate new trends of hcv infection in china. the hcv genotype distribution differed according to the donors' region of origin. among donors fro ...201120196805
hepatitis c virus genotype distribution in china: predominance of closely related subtype 1b isolates and existence of new genotype 6 variants.to determine hepatitis c virus (hcv) genotype distribution in china, a total of 148 hcv rna positive serum samples were collected from nine geographic areas and subjected to rt-pcr followed by direct dna sequencing and phylogenetic analysis of the core, e1, and ns5b regions. hcv was genotyped in 139 (93.9%) samples. among them subtype 1b was the most predominant [66% (92/139)] followed by 2a [14% (19/139)]. of 92 subtype 1b isolates, 35 (38%) and 30 (33%) formed two clusters, designated groups a ...200515714489
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