title: Booster vaccination with recombinant hepatitis B vaccine four years after priming with one single dose.
abstract: We here studied the antibody response to a booster dose four years after the administration of one single dose of recombinant HB vaccine. Before receiving the booster dose, levels of protective antibodies (anti-HBs) were generally low and 24/41 (59%) individuals lacked detectable antibodies (< 1 IU/L). Within 14 d of booster vaccination, 36/38 (95%) vaccinees showed levels of antibodies > 100 IU/L. Notably, these levels were at least as high as those of a reference group 12 months after initiation of vaccination according to the standard three-dose vaccination at intervals of 0, 1 and 6 months. In conclusion, one single dose of HB vaccine seemed to confer on young healthy individuals a well preserved B cell memory, disclosed as a rapid and strong antibody response to a second dose four years later.
authors.affiliation: Department of Infectious Diseases, University Hospital of Umeå, Sweden. johan.wistrom@infdis.umu.se
authors.forename: J
authors.initials: J
authors.lastname: Wiström
authors.forename: C
authors.initials: C
authors.lastname: Ahlm
authors.forename: S
authors.initials: S
authors.lastname: Lundberg
authors.forename: B
authors.initials: B
authors.lastname: Settergren
authors.forename: A
authors.initials: A
authors.lastname: Tärnvik
mesh_terms: D000328:Adult; D004306:Dose-Response Relationship, Immunologic; D005260:Female; D006510:Hepatitis B Antibodies / Q000096:biosynthesis / Q000097:blood; D017325:Hepatitis B Vaccines / Q000008:administration & dosage* / Q000276:immunology; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary; D008297:Male; D014614:Vaccines, Synthetic / Q000008:administration & dosage* / Q000276:immunology
chemical_list: D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D014614:Vaccines, Synthetic