[Prevention of the horizontal transmission of hepatitis B in children]

C Barbera1, L Gabetti, G Elia

  • 1Istituto di Discipline Pediatriche, I Cattedra di Puericultura dell'Università degli Studi di Torino, Italia.

Insights

The Hevac B vaccine effectively protected most children against Hepatitis B virus infection. Booster doses improved antibody levels in some non-responders, highlighting vaccination

Area of Science:

  • Immunology
  • Virology
  • Pediatrics

Context:

  • Hepatitis B virus (HBV) poses a significant global health risk.
  • Active immunization through vaccination is the primary strategy for HBV prevention.
  • Children cohabiting with chronic HBV carriers are at high risk.

Purpose:

  • To evaluate the efficacy of the Hevac B vaccine in children exposed to chronic Hepatitis B virus carriers.
  • To assess seroconversion rates and immune responses following vaccination.
  • To investigate the impact of supplementary and booster doses on non-responders.

Summary:

  • Sixty-one children received three doses of Hevac B vaccine.
  • 57 out of 61 children achieved protective antibody titers post-vaccination.
  • Four children, including one with T-lymphocyte alterations, did not achieve protective levels initially.
  • Supplementary and booster vaccinations were administered to non-responders, with two boys remaining without seroconversion.

Impact:

  • The Hevac B vaccine demonstrates high efficacy in preventing Hepatitis B virus infection in at-risk children.
  • Understanding non-response is crucial for optimizing vaccination strategies.
  • Further investigation into immune response variations may refine vaccine protocols.

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