"PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"

Long-term protection against hepatitis B virus (HBV) is dependent on persistence of anti-HBs antibodies and/or strong immunological memory. In this study we evaluated the persistence of anti-HBs antibodies in healthy Iranian children 5 years after primary vaccination and the response to a booster do...

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Main Authors: A. Jafarzadeh, S. M. A. Sajjadi
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2005-04-01
Series:Acta Medica Iranica
Subjects:
Online Access:https://acta.tums.ac.ir/index.php/acta/article/view/2968
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author A. Jafarzadeh
S. M. A. Sajjadi
author_facet A. Jafarzadeh
S. M. A. Sajjadi
author_sort A. Jafarzadeh
collection DOAJ
description Long-term protection against hepatitis B virus (HBV) is dependent on persistence of anti-HBs antibodies and/or strong immunological memory. In this study we evaluated the persistence of anti-HBs antibodies in healthy Iranian children 5 years after primary vaccination and the response to a booster dose using recombinant hepatitis B vaccine. Totally, 81 children who had received primary course of hepatitis B vaccine at 0, 1.5 and 9 months of age were included in this study. A booster dose of hepatitis B vaccine was administered at 5 years after completion of primary vaccination program. Children were tested for anti-HBs antibody just before administration of booster dose and at 4 weeks after booster vaccination. An 81.5% seroprotection rate (anti-HBs > 10 IU/L) was observed 5 years after primary vaccination. After administration of booster dose, 100% of the children developed protective level of anti-HBs antibody and geometric mean titer rose from 206 IU/L to 1278 IU/L. These results indicate the existence of an effective immunological memory over a period of 5 years after primary vaccination with recombinant hepatitis B vaccine in healthy Iranian children.
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spelling doaj.art-dac97c6e39e54f06805c29f5f0dcd39c2022-12-21T18:48:36ZengTehran University of Medical SciencesActa Medica Iranica0044-60251735-96942005-04-01432"PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE" A. Jafarzadeh0 S. M. A. Sajjadi1 Long-term protection against hepatitis B virus (HBV) is dependent on persistence of anti-HBs antibodies and/or strong immunological memory. In this study we evaluated the persistence of anti-HBs antibodies in healthy Iranian children 5 years after primary vaccination and the response to a booster dose using recombinant hepatitis B vaccine. Totally, 81 children who had received primary course of hepatitis B vaccine at 0, 1.5 and 9 months of age were included in this study. A booster dose of hepatitis B vaccine was administered at 5 years after completion of primary vaccination program. Children were tested for anti-HBs antibody just before administration of booster dose and at 4 weeks after booster vaccination. An 81.5% seroprotection rate (anti-HBs > 10 IU/L) was observed 5 years after primary vaccination. After administration of booster dose, 100% of the children developed protective level of anti-HBs antibody and geometric mean titer rose from 206 IU/L to 1278 IU/L. These results indicate the existence of an effective immunological memory over a period of 5 years after primary vaccination with recombinant hepatitis B vaccine in healthy Iranian children.https://acta.tums.ac.ir/index.php/acta/article/view/2968hepatitis B vaccineanti-HBs antibodiesbooster vaccination
spellingShingle A. Jafarzadeh
S. M. A. Sajjadi
"PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
Acta Medica Iranica
hepatitis B vaccine
anti-HBs antibodies
booster vaccination
title "PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
title_full "PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
title_fullStr "PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
title_full_unstemmed "PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
title_short "PERSISTENCE OF ANTI-HBs ANTIBODIES IN HEALTHY IRANIAN CHILDREN VACCINATED WITH RECOMBINANT HEPATITIS B VACCINE AND RESPONSE TO A BOOSTER DOSE"
title_sort persistence of anti hbs antibodies in healthy iranian children vaccinated with recombinant hepatitis b vaccine and response to a booster dose
topic hepatitis B vaccine
anti-HBs antibodies
booster vaccination
url https://acta.tums.ac.ir/index.php/acta/article/view/2968
work_keys_str_mv AT ajafarzadeh persistenceofantihbsantibodiesinhealthyiranianchildrenvaccinatedwithrecombinanthepatitisbvaccineandresponsetoaboosterdose
AT smasajjadi persistenceofantihbsantibodiesinhealthyiranianchildrenvaccinatedwithrecombinanthepatitisbvaccineandresponsetoaboosterdose