Genetic variation of hepatitis C virus in a cohort of injection heroin users in Wuhan, China

Virus Res. 2008 Jul;135(1):191-6. doi: 10.1016/j.virusres.2008.01.017. Epub 2008 Mar 18.

Abstract

Since the majority of heroin abusers use injection as the primary route of admission, heroin abuse contributes significantly to the transmission of hepatitis C virus (HCV). We determined HCV infection and its genotype distribution among injection heroin users in Wuhan, the largest city in the central China. Eight hundred seventy-eight (84%) out of 1046 serum specimens from the injection drug users were positive for HCV antibody. Out of randomly selected 122 specimens positive for HCV antibody, seventy-eight (64%) had detectable HCV RNA with genotype 6a as the predominant strain (50%), followed by 3b (32.2%), 1a (8.1%), 1b (6.5%), and 3a (3.2%). HCV RNA levels in male heroin users were significantly higher (P=0.013) than those in the female subjects. Although there was no significant difference in HCV RNA levels among the specimens positive for HCV 6a and 1a/1b, the samples with 6a or 1a/1b contained higher levels of HCV RNA than the specimens positive for HCV 3b (P=0.019, P=0.012, respectively). These findings indicate that there is a high prevalence of HCV infection with genotypes 6a and 3b as predominated strains among injection heroin users in Wuhan, China.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Age Factors
  • Antibodies, Viral / blood
  • China / epidemiology
  • Cohort Studies
  • Female
  • Genetic Variation*
  • Hepacivirus / classification
  • Hepacivirus / genetics*
  • Hepacivirus / immunology
  • Hepacivirus / isolation & purification
  • Hepatitis C / epidemiology
  • Hepatitis C / immunology
  • Hepatitis C / virology*
  • Heroin Dependence / virology*
  • Humans
  • Male
  • Middle Aged
  • Molecular Sequence Data
  • Phylogeny
  • Sex Factors
  • Viral Proteins / genetics

Substances

  • Antibodies, Viral
  • Viral Proteins

Associated data

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