Dataset from Long-term Persistence of Hepatitis B Antibodies and Immune Response to a Hepatitis B Vaccine Challenge in 12-13 Year Old Adolescents, Vaccinated in Infancy With GlaxoSmithKline (GSK) Biologicals' HBV Vaccine (Engerix™-B)

This phase IV open study will evaluate the persistence of humoral antibodies against hepatitis B as well as the immune response to a challenge dose of hepatitis B vaccine in adolescents aged 12-13 years, who received three consecutive doses of GSK Biologicals' recombinant hepatitis B vaccine (Engerix™-B) in infancy.