Waning immunity to plasma‐derived hepatitis B vaccine and the need for boosters 15 years after neonatal vaccination
Chun‐Yi Lu, Bor‐Luen Chiang, Wei‐Kuang Chi, Mei‐Hwei Chang, Yen‐Hsuan Ni, Hsu‐Mei Hsu, Shiing‐Jer Twu, Ih‐Jen Su, Li‐Min Huang, Chin‐Yun Lee – 24 November 2004 – Neonatal immunization with hepatitis B (HB) vaccine is highly effective; however, more needs to be learned about the duration of protection and indications for boosters. We measured antibody to HB core antigen (anti‐HBc), HB surface antigen (HBsAg), and pre‐ and postbooster titers of HBsAg antibody (anti‐HBs) 15 years after primary neonatal immunization with plasma‐derived HB vaccines in 2 cohorts of 15‐year‐old children.