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Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle
09:35

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle

Published on: February 1, 2017

Postnatal infectivity of hepatitis B surface antigen-carrier mothers

R P Beasley, L Y Hwang

    The Journal of Infectious Diseases
    |February 1, 1983
    PubMed

    Insights

    Hepatitis B virus (HBV) infection risk in infants born to carrier mothers remains significant, with a 26% annual incidence rate observed. Maternal hepatitis B e antigen (HBeAg) status strongly influences infant infection risk.

    Area of Science:

    • Hepatology
    • Virology
    • Immunology

    Background:

    • Hepatitis B virus (HBV) poses a significant risk to infants born to carrier mothers.
    • Hepatitis B immune globulin (HBIG) is administered to newborns to prevent HBV infection.
    • The duration of passive antibody protection from HBIG is limited, necessitating further understanding of infant infection dynamics.

    Purpose of the Study:

    • To determine the incidence of hepatitis B virus (HBV) infections in infants during their second and third years of life.
    • To analyze the relationship between maternal hepatitis B e antigen (HBeAg) and anti-HBe status and infant HBV infection rates.
    • To assess the long-term effectiveness of HBIG prophylaxis in preventing HBV transmission.

    Main Methods:

    • A cohort of 105 infants born to hepatitis B surface antigen (HBsAg)-positive mothers was followed.
    • Infants received HBIG at birth and potentially at 3 and 6 months.
    • Infants negative for HBV markers at 12 months were analyzed for subsequent infections over an average of 17.5 months, correlating with maternal HBeAg/anti-HBe status.

    Main Results:

    • An overall annual HBV infection incidence rate of 26.0% was observed in the studied infants.
    • Infants born to HBeAg-positive mothers had the highest infection rate (57.1%).
    • Infants born to mothers positive for anti-HBe had the lowest infection rate (11.3%), while those with mothers negative for both HBeAg and anti-HBe showed an intermediate rate (20.4%).

    Conclusions:

    • Maternal HBeAg status is a critical determinant of HBV transmission risk to infants, even after HBIG prophylaxis.
    • A substantial proportion of infants born to HBV carrier mothers remain at risk for infection beyond the first year of life.
    • Further strategies may be needed to mitigate HBV infection risk in infants, particularly those with HBeAg-positive mothers.

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