Background method to prevent HB viral transmission, induces protective antibodies decline in titer over time. Studies on the duration of adolescents have been limited. Objectives and the prevalence of non-responders after a HB vaccine booster dosage.Methods This cross-sectional study was performed from February included HB vaccination history, anthropometric measurements, dose of HB vaccine. Resultsnon-protected subjects, of which 33 showed anamnestic responses.into consideration the adolescents with protective anti-HBs before and after the booster dose, serologic protection was demonstrated of non-responders may indicate bias of parents' recall. Conclusion nti-HBs is detected in less than half of Following booster dosage, anamnestic responses are noted in oneconfirmation with further study is needed. [Paediatr Indones. 2013;53:160-6.].

Background