Genotypes distribution of hepatitis C virus through multi-center, large sample studies among chronic hepatitis C patients in Chinese Han population

VernacularTitle:中国汉族人群慢性丙型肝炎病毒基因型分布规律研究
Author: Hong-Ming NIE ¹ ; Jian-Jie CHEN ; Rong WANG ; Cheng-Bao WANG ; Hui-Lin DONG ; Yi-Yun CHEN
Author Information

1. 上海中医药大学附属曙光医院
Keywords: Chronic hepatitis C; Genotype; Epidemiology
From: Chinese Journal of Epidemiology 2012;33(5):501-504
CountryChina
Language:Chinese
Abstract: Objective To understand the distribution of hepatitis C virus (HCV) genotypes in China.Methods A national multi-center,large sample epidemiological survey was carried out and certified by an international third-party testing organization.Internationally accepted method for sequencing analysis of viral genotype was used.Results Patients were those suffered from the 4 major genotypes of chronic hepatitis C,including nine subtypes,which were dominated by genotype 1 (69.6％),with type lb in particular (accounting for 68.38％ ).Among the rare gene-6,we saw more subtypes of 6a.In the south,central,and north areas,there was no significant difference seen between the south and the north areas in the distribution of the genotype 1.However,the rate of gene type 2a increased gradually from south to north.In terms of less common type of gene 3b and gene-6,they were seen mainly in the southern provinces.Conclusion In China,Patients with chronic hepatitis C had 4 HCV genotypes,with 9 subtypes.The rarely seen genotypes 3b and 6 were mainly distributed in the southern provinces.