A randomized controlled trial study of immunogenicity and safety of an inactivated SARS-CoV-2 vaccine in different immunization schedules
Objective: To compare the immunogenicity and safety of an inactivated SARS-CoV-2 vaccine used for the vaccination in public security officers with different immunization schedules. Methods: From January to February, 2021, 405 public security officers in Taiyuan were randomly divided into 3 groups. Two doses of SARS-CoV-2 inactivated vaccine were injected according to the immunization schedule of 0-14 days, 0-21 days or 0-28 days, respectively. The nucleic acid of SARS-CoV-2 was detected by reverse transcription polymerase chain reaction. The neutralizing antibodies to SARS-CoV-2 were tested by microdose cytopathogenic efficiency assay of live virus. The GMT, seroconversion rate of SARS-CoV-2 neutralizing antibody and safety of the vaccine were analyzed for the 3 groups. Results: The seroconversion rate of SARS-CoV-2 neutralizing antibody was 100% in all the 3 groups. The SARS-CoV-2 neutralizing antibody level of 0-21 day group [166.70 (95%CI: 148.30-185.10)] was similar to that of 0-28 day group [179.50 (95%CI: 156.50-202.60)] (P>0.05), significantly higher than that of 0-14 day group [86.08 (95%CI: 72.36-99.80)] (P<0.001). The incidence rates of adverse reaction in the 3 groups were 1.48% (2/135), 0.74% (1/136) and 1.49% (2/134) respectively (P=0.750), all the adverse reactions were mild. Conclusions: The vaccination of inactivated SARS-CoV-2 vaccine with different immunization schedules in public security officers showed good safety and high seroconversion rate, and the GMTs of SARS-CoV-2 neutralizing antibody in 0-21 day group and 0-28 day group were higher than that in 0-14 day group.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2021 |
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Erschienen: |
2021 |
Enthalten in: |
Zur Gesamtaufnahme - volume:42 |
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Enthalten in: |
Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi - 42(2021), 12 vom: 10. Dez., Seite 2077-2081 |
Sprache: |
Chinesisch |
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Beteiligte Personen: |
Chen, J [VerfasserIn] |
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Links: |
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Themen: |
Antibodies, Neutralizing |
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Anmerkungen: |
Date Completed 28.12.2021 Date Revised 28.12.2021 published: Print Citation Status MEDLINE |
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doi: |
10.3760/cma.j.cn112338-20210807-00617 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM334908590 |
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520 | |a Objective: To compare the immunogenicity and safety of an inactivated SARS-CoV-2 vaccine used for the vaccination in public security officers with different immunization schedules. Methods: From January to February, 2021, 405 public security officers in Taiyuan were randomly divided into 3 groups. Two doses of SARS-CoV-2 inactivated vaccine were injected according to the immunization schedule of 0-14 days, 0-21 days or 0-28 days, respectively. The nucleic acid of SARS-CoV-2 was detected by reverse transcription polymerase chain reaction. The neutralizing antibodies to SARS-CoV-2 were tested by microdose cytopathogenic efficiency assay of live virus. The GMT, seroconversion rate of SARS-CoV-2 neutralizing antibody and safety of the vaccine were analyzed for the 3 groups. Results: The seroconversion rate of SARS-CoV-2 neutralizing antibody was 100% in all the 3 groups. The SARS-CoV-2 neutralizing antibody level of 0-21 day group [166.70 (95%CI: 148.30-185.10)] was similar to that of 0-28 day group [179.50 (95%CI: 156.50-202.60)] (P>0.05), significantly higher than that of 0-14 day group [86.08 (95%CI: 72.36-99.80)] (P<0.001). The incidence rates of adverse reaction in the 3 groups were 1.48% (2/135), 0.74% (1/136) and 1.49% (2/134) respectively (P=0.750), all the adverse reactions were mild. Conclusions: The vaccination of inactivated SARS-CoV-2 vaccine with different immunization schedules in public security officers showed good safety and high seroconversion rate, and the GMTs of SARS-CoV-2 neutralizing antibody in 0-21 day group and 0-28 day group were higher than that in 0-14 day group | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Randomized Controlled Trial | |
650 | 7 | |a Antibodies, Neutralizing |2 NLM | |
650 | 7 | |a Antibodies, Viral |2 NLM | |
650 | 7 | |a COVID-19 Vaccines |2 NLM | |
650 | 7 | |a SARS-CoV-2 inactivated vaccines |2 NLM | |
650 | 7 | |a Vaccines, Inactivated |2 NLM | |
700 | 1 | |a Li, X Q |e verfasserin |4 aut | |
700 | 1 | |a Lu, X X |e verfasserin |4 aut | |
700 | 1 | |a Xing, R Q |e verfasserin |4 aut | |
700 | 1 | |a Li, H |e verfasserin |4 aut | |
700 | 1 | |a Zhang, X H |e verfasserin |4 aut | |
700 | 1 | |a Wei, Z Y |e verfasserin |4 aut | |
700 | 1 | |a Mu, S C |e verfasserin |4 aut | |
700 | 1 | |a Feng, L Z |e verfasserin |4 aut | |
700 | 1 | |a Wang, S P |e verfasserin |4 aut | |
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