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[The need for hepatitis B immunoprevention in families with vertical hepatitis B infected children]
Insights
Hepatitis B infection can spread within families, even after a mother transmits it to her child. Vaccinating family members is crucial to prevent further hepatitis B virus (HBV) transmission.
Area of Science:
- Hepatology
- Virology
- Public Health
Context:
- Vertical transmission of Hepatitis B virus (HBV) from mother to child.
- Investigation of HBV infection scope within family clusters.
Purpose:
- To assess the extent of HBV infection among family contacts (fathers, siblings) of mothers with vertical HBV transmission.
- To evaluate the long-term risk of HBV infection within these families.
Summary:
- Initial examination revealed acute HBV infection in 1 father and 1 sibling, with past infection in 8 fathers and 1 sibling.
- Two fathers and six siblings were susceptible to HBV.
- Follow-up over 6.2 years in 5 families identified new HBV infections in one father and one child.
Impact:
- Highlights the significant risk of intrafamilial HBV spread.
- Underscores the critical need for universal hepatitis B vaccination programs for at-risk family members.
- Informs public health strategies for controlling hepatitis B transmission.
Unlabelled:
We investigated the scope of hepatitis B infection in 11 families (family contacts: fathers, siblings) in which the mother transmitted (vertical) hepatitis B infection to the child.
Results:
The initial examination demonstrated an acute hepatitis B infection in one of the 11 fathers and former hepatitis B infection in 8 fathers. In 2 fathers no hepatitis B markers were found (susceptible for hepatitis B). In 3 of the 10 siblings examined an acute hepatitis B infection was demonstrated, one child showed signs of a former hepatitis B infection, and in 6 no hepatitis B markers were demonstrable. Current checks made in 5 families over a period of about 6.2 years showed another hepatitis B infection in one father and one child. These observations stress the importance of immunisation in such families.