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Does hepatitis B virus (HBV) genotype influence the clinical outcome of HBV infection?

C Mayerat1, A Mantegani, P C Frei

  • 1Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland.

Journal of Viral Hepatitis
|December 22, 1999
PubMed

Insights

Hepatitis B virus (HBV) genotype A is strongly linked to chronic infections, while genotype D is associated with acute, resolving hepatitis. This finding suggests HBV genotypes influence infection outcomes and disease progression.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Hepatitis B virus (HBV) infection can lead to chronic liver disease in 5-10% of adults.
  • HBV genotypes A and D are prevalent in Western Europe, accounting for 90% of infections.
  • The relationship between HBV genotype and clinical outcome requires further investigation.

Purpose of the Study:

  • To investigate the association between HBV genotypes A and D and the clinical outcome of hepatitis B infection.
  • To compare the prevalence of HBV genotypes A and D in patients with chronic active hepatitis versus acute resolving hepatitis.

Main Methods:

  • Genotyping of HBV in patients with chronic active hepatitis and acute resolving hepatitis.
  • Statistical analysis (Fisher's exact test) to determine the association between genotype and clinical outcome.

Main Results:

  • HBV genotype A was prevalent in 28/35 patients with chronic active hepatitis.
  • HBV genotype D was prevalent in 24/30 patients with acute resolving hepatitis.
  • A statistically significant association was found between HBV genotype A and chronic infection (P < 0.0001).

Conclusions:

  • HBV genotype A is significantly associated with chronic hepatitis B infection.
  • HBV genotype D is significantly associated with acute, resolving hepatitis B infection.
  • HBV genotypes may play a crucial role in the virus-host relationship and disease progression.

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