ArticleAllergy2022
Humoral immune response of BBIBP COVID-19 vaccination before and after the booster immunization.
Article in Allergy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.
- COVID-19 antibody responses in individuals with natural immunity and with vaccination-induced immunity: a systematic review and meta-analysis.Systematic reviews · 2024Pooled it
- Protective effectiveness of previous infection against subsequent SARS-Cov-2 infection: systematic review and meta-analysis.Frontiers in public health · 2024Pooled it
- Waning neutralizing antibodies through 180 days after homologous and heterologous boosters of inactivated COVID-19 vaccine.Frontiers in public health · 2025Trial
- The Effects ofMicroorganisms · 2026Article
- Surrogate virus neutralization test as a scalable and reliable tool for immune surveillance in booster-vaccinated populations.Scientific reports · 2026Article
- Pre-Existing Th1 Immunity Outperforms Age in Predicting Antibody Responses to SARS-CoV-2 Inactivated Vaccines.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- The High Expression of PD-1 Defines A Subpopulation of Tfh Cells Responding to COVID-19 Vaccine in Humans.Genomics, proteomics & bioinformatics · 2025Article
- Dynamic Changes and Trends of SARS-CoV-2 Antibodies Induced by Infection and Vaccination Across Multiple Time Points.Journal of medical virology · 2025Article
- Antibody Response after Homologous and Heterologous Prime-Boost COVID-19 Vaccination in a Bangladeshi Residential University Cohort.Vaccines · 2024Article
- Safety and Immunogenicity After Primary and Booster Inactivated SARS-Cov-2 Vaccination in Patients with Autoimmune Liver Diseases.Journal of clinical and translational hepatology · 2024Article
- Evaluating long-term antibody responses to booster doses of COVID-19 vaccines in the Pakistani population.Pakistan journal of medical sciences · 2024Article
- Probiotic-Fermented Distillers Grain Alters the Rumen Microbiome, Metabolome, and Enzyme Activity, Enhancing the Immune Status of Finishing Cattle.Animals : an open access journal from MDPI · 2023Article
- Immune-Boosting Effect of the COVID-19 Vaccine: Real-World Bidirectional Cohort Study.JMIR public health and surveillance · 2023Article
- Unveiling a New Perspective on Distinguishing Omicron Breakthrough Cases and Postimmune COVID-19-Naive Individuals: Insights from Antibody Profiles.Microbiology spectrum · 2023Article
- Mix-and-match COVID-19 vaccines trigger high antibody response after the third dose vaccine in Moroccan health care workers.Vaccine: X · 2023Article
- Neutralizing antibody levels associated with injectable and aerosolized Ad5-nCoV boosters and BA.2 infection.BMC medicine · 2023Article
- Article
- Regulating the microenvironment with nanomaterials: Potential strategies to ameliorate COVID-19.Acta pharmaceutica Sinica. B · 2023Review
- Association between levels of IgG antibodies from vaccines and Omicron symptomatic infection among children and adolescents in China.Frontiers in medicine · 2023Article
- Kinetics of SARS-CoV-2 neutralizing antibodies in Omicron breakthrough cases with inactivated vaccination: Role in inferring the history and duration of infection.Frontiers in immunology · 2023Article
Corrections and comments
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Authors and funding
14 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe inactivated Sinopharm/BBIBP COVID-19 vaccine has been widely used in the world and has joined the COVAX vaccine supply program for developing countries. It is also well adapted for usage in low- and middle-income nations due to their low storage requirements.
objectiveThis study aims to report on the kinetics, durability, and neutralizing ability of the induced immunity of the BBIBP vaccine, and the intensified antibody response elicited by the booster.
methodsA total of 353 healthy adult participants, aged 20-74 years, were recruited in this multicenter study. A standard dose of the BBIBP vaccine was administered (Month 0), followed by a second standard dose (Month 1), and a booster dose (after Month 7). Vaccine-induced virus-specific antibody levels (SARS-CoV-2-IgA/IgM/IgG), conventional virus neutralization test (cVNT), pseudovirus neutralization test (pVNT), and surrogate virus neutralization test (sVNT) were monitored over multiple time points.
resultsNeutralizing titers induced by the two doses of inactivated vaccine for COVID-19 peaked at Month 2 and declined to 33.89% at Month 6. Following the booster dose, elevated levels of antibodies were induced for IgA, IgG, and neutralizing antibodies, with neutralizing titer reaching 13.2 times that of before the booster.
conclusionBy monitoring the antibody titer levels postvaccination, this study has shown that serum antibody levels will decrease over time, but a notable spike in antibody levels postbooster highlights the anamnestic immune response. This signifies that the protection capability has increased following the injection of booster immunization.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.