Antibody response to the inactivated SARS-CoV-2 vaccine among healthcare workers, Indonesia
ABSTRACT: Background: As healthcare workers (HCWs) are at high risk for infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), they have priority for receipt of the coronavirus disease 2019 (COVID-19) vaccine. The inactivated SARS-CoV-2 vaccine has been used in Indonesia to induce an antibody response against SARS-CoV-2 infection in HCWs. However, information regarding the kinetics of antibodies induced by this vaccine remains scarce. Objective: To investigate the magnitude and durability of antibodies against the spike (S) protein (anti-S) in fully-vaccinated HCWs using an electrochemiluminescence immunoassay. Results: Seroconversion of anti-S antibodies was observed among 159 (99.4%) of 160 HCWs without prior SARS-CoV-2 infection 14 days after full-dose vaccination. The level of anti-S antibodies decreased significantly by day 42 post-vaccination compared with day 14 post-vaccination, but persisted for up to 98 days post-vaccination. In contrast, vaccinated HCWs with prior SARS-CoV-2 infection had significantly higher, stable levels of anti-S antibodies compared with vaccinated HCWs without prior SARS-CoV-2 infection. Conclusion: The remarkable decline and lower level of anti-S antibodies among HCWs without prior SARS-CoV-2 infection may indicate the need for an additional booster dose of SARS-CoV-2 vaccine for protection against COVID-19. This study of antibody responses induced by the inactivated SARS-CoV-2 vaccine among HCWs may contribute to future policy decisions regarding vaccination..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:113 |
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| Enthalten in: |
International Journal of Infectious Diseases - 113(2021), Seite 15-17 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cucunawangsih Cucunawangsih [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
Antibody |
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| doi: |
10.1016/j.ijid.2021.09.078 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ06071932X |
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| 520 | |a ABSTRACT: Background: As healthcare workers (HCWs) are at high risk for infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), they have priority for receipt of the coronavirus disease 2019 (COVID-19) vaccine. The inactivated SARS-CoV-2 vaccine has been used in Indonesia to induce an antibody response against SARS-CoV-2 infection in HCWs. However, information regarding the kinetics of antibodies induced by this vaccine remains scarce. Objective: To investigate the magnitude and durability of antibodies against the spike (S) protein (anti-S) in fully-vaccinated HCWs using an electrochemiluminescence immunoassay. Results: Seroconversion of anti-S antibodies was observed among 159 (99.4%) of 160 HCWs without prior SARS-CoV-2 infection 14 days after full-dose vaccination. The level of anti-S antibodies decreased significantly by day 42 post-vaccination compared with day 14 post-vaccination, but persisted for up to 98 days post-vaccination. In contrast, vaccinated HCWs with prior SARS-CoV-2 infection had significantly higher, stable levels of anti-S antibodies compared with vaccinated HCWs without prior SARS-CoV-2 infection. Conclusion: The remarkable decline and lower level of anti-S antibodies among HCWs without prior SARS-CoV-2 infection may indicate the need for an additional booster dose of SARS-CoV-2 vaccine for protection against COVID-19. This study of antibody responses induced by the inactivated SARS-CoV-2 vaccine among HCWs may contribute to future policy decisions regarding vaccination. | ||
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