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. 2021 Apr 3;17(4):1190-1195.
doi: 10.1080/21645515.2020.1806672. Epub 2020 Sep 11.

Long-term persistence of anti-HBs after hepatitis B vaccination among isolated anti-HBc positive adults in China: 8-years results

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Long-term persistence of anti-HBs after hepatitis B vaccination among isolated anti-HBc positive adults in China: 8-years results

Wen Ren et al. Hum Vaccin Immunother. .

Abstract

The long-term persistence of hepatitis B surface antibody (anti-HBs) after hepatitis B vaccination among adults harboring isolated hepatitis B core antibody (anti-HBc) is not yet clarified. The present study aimed to assess the immunogenicity and persistence of antibodies in adults 8 years after vaccination. A total of 309 participants including 94 participants in the isolated anti-HBs group and 215 in the control group were recruited in this study. All subjects received three doses of hepatitis B vaccine (20 μg) at 0, 1, and 12 months, followed by testing for serological responses 1 month after the third vaccination. Subsequently, 154 participants were excluded because their anti-HBs data of 8 y after the first vaccination were missing. The prevalence of isolated anti-HBc was about 11.5%, the positive seroprotection rate was 72%, and the geometric mean titer (GMT) value of anti-HBs titer was 24.55 mIU/mL in the isolated anti-HBc group 8 y after three doses of vaccination. No significant difference was detected in the positive seroprotection rate (P = .434) and the GMT values of anti-HBs titers (P = .674) between the isolated anti-HBc and control groups after 8 y. In conclusion, isolated anti-HBc-positive subjects could achieve satisfactory long-term immune effects after hepatitis B vaccination. The GMT values of anti-HBs titers were lower than those of the control group at 1 month, but no significant difference was detected after 8 years.

Keywords: Hepatitis B virus; isolated anti-HBc; vaccine.

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Figures

Figure 1.
Figure 1.
Study flowchart
Figure 2.
Figure 2.
Proportion of different immune response in the isolated anti-HBc and control groups

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This study was supported by the National Scientific and Technological Major Project of China [2018ZX10715014, 2017ZX10105001, 2014ZX10004008, 2013ZX10004-904, 2011ZX10004-901].