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[Distribution of hepatitis B virus genotypes in Korea]

Ji-Hyun Cho1, Kui-Hyun Yoon, Key-Earn Lee

  • 1Department of Laboratory Medicine, College of Medicine, Wonkwang University, Iksan, Korea.

The Korean Journal of Hepatology
|July 8, 2009
PubMed

Insights

Hepatitis B virus (HBV) genotype C2 is overwhelmingly predominant in Korea, with other genotypes rarely detected. This nationwide study confirms genotype C2's prevalence, impacting public health strategies for HBV infection control.

Area of Science:

  • Virology
  • Hepatology
  • Epidemiology

Context:

  • Hepatitis B virus (HBV) infections pose a significant global health burden.
  • Understanding HBV genotype distribution is crucial for effective treatment and prevention strategies.
  • Previous data suggested a unique HBV genotype prevalence in Korea, necessitating a comprehensive national investigation.

Purpose:

  • To conduct a nationwide investigation to confirm the predominant hepatitis B virus (HBV) genotype in Korea.
  • To determine the prevalence of HBV genotypes A-G among infected individuals across the Korean peninsula.
  • To perform whole-genome sequencing and phylogenetic analysis for detailed characterization of circulating HBV strains.

Summary:

  • A nationwide multiplex PCR analysis of 510 serum samples revealed that 98.1% of hepatitis B virus (HBV) infections were caused by genotype C.
  • Whole-genome sequencing of 62 Korean HBV strains confirmed the predominance of subgenotype C2, with only rare occurrences of other genotypes, including a single case of subgenotype A2.
  • Phylogenetic analysis further supported the widespread circulation of HBV subgenotype C2 throughout Korea.

Impact:

  • This study definitively establishes HBV genotype C2 as the dominant strain in Korea, providing critical data for public health policy.
  • The findings highlight the need for targeted surveillance and treatment strategies tailored to the prevalent genotype C2.
  • Future research should focus on confirming the rare detection of non-C genotypes and understanding their epidemiological significance.
Abstract

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