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Chronic hepatitis virus infection in children

M H Chang1

  • 1Department of Pediatrics, College of Medicine, National Taiwan University, Taipei. mhchang@ha.mc.ntu.edu.tw

Journal of Gastroenterology and Hepatology
|June 26, 1998
PubMed

Insights

Hepatitis B and C viruses cause chronic liver disease in children, with transmission occurring perinatally or horizontally. Universal HBV immunization significantly reduced carrier rates, but HCV prevention requires further vaccine development.

Area of Science:

  • Pediatrics
  • Hepatology
  • Infectious Diseases

Background:

  • Hepatitis B virus (HBV) and Hepatitis C virus (HCV) are primary causes of chronic liver disease in children.
  • HBV transmission occurs perinatally from HBeAg-positive mothers or horizontally via contaminated needles and intrafamilial spread.
  • HCV infection in children is linked to blood product exposure, maternal infection, and unsterile needles in endemic areas.

Purpose of the Study:

  • To review the epidemiology, transmission, and management of HBV and HCV infections in pediatric populations.
  • To highlight the impact of immunization programs and current challenges in preventing viral hepatitis in children.

Main Methods:

  • Review of existing literature on pediatric HBV and HCV infections.
  • Analysis of transmission routes, natural history, and clinical outcomes.
  • Evaluation of the effectiveness of current prevention strategies.

Main Results:

  • Universal HBV immunization has drastically reduced carrier rates and hepatocellular carcinoma incidence in children.
  • Spontaneous HBeAg/anti-HBe seroconversion in HBV infection is rare in young children, increasing with age.
  • Mother-to-infant HCV transmission occurs in about 5% of cases, influenced by maternal viral load; genotype Ib is most common.
  • Chronicity develops in 60-80% of pediatric HCV cases, often with minimal liver histology changes.

Conclusions:

  • While HBV immunization is highly effective, ongoing vigilance and research are needed for HCV prevention, particularly for mother-to-infant transmission.
  • Vaccine development for HCV is crucial to reduce pediatric infections and long-term liver disease.
  • Screening of blood products has reduced HCV transmission, but other routes require continued attention.

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