Apichartpiyakul C, Chittivudikarn C, Miyajima H, Homma M, Hotta H
Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand.
J Clin Microbiol. 1994 Sep;32(9):2276-9. doi: 10.1128/jcm.32.9.2276-2279.1994.
Hepatitis C virus (HCV) isolates obtained from 25 anti-HCV antibody-positive healthy blood donors and 29 drug addicts in Chiang Mai, Thailand, were analyzed. HCV RNA was detected in 23 blood donor samples (92%) and 24 drug addict blood samples (83%) by PCR for a portion of the NS5 region. Subtype analysis revealed that HCV type 3a (HCV-3a) was the prevailing subtype (30%), which was followed in prevalence by HCV-1a (21%), -1b (13%), -3b (13%), and -6a (2%). Six (13%) of the 47 isolates showed low sequence similarities with known types and subtypes. The sequence variants could be grouped into four branches in a molecular evolutionary phylogenetic tree.
对从泰国清迈25名抗丙型肝炎病毒(HCV)抗体呈阳性的健康献血者和29名吸毒者中获得的HCV分离株进行了分析。通过针对NS5区域一部分的PCR检测,在23份献血者样本(92%)和24份吸毒者血液样本(83%)中检测到了HCV RNA。亚型分析显示,HCV 3a型(HCV-3a)是主要亚型(30%),其次是HCV-1a(21%)、-1b(13%)、-3b(13%)和-6a(2%)。47株分离株中有6株(13%)与已知类型和亚型的序列相似性较低。在分子进化系统发育树中,序列变异体可分为四个分支。