ArticleInfluenza and other respiratory viruses2024
Waning Humoral Immune Response Following the Third and Fourth SARS-COV-2 Vaccine: A Cohort Study in Healthcare Workers.
Article in Influenza and other respiratory viruses, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Long-Term Durability and Dynamics of Anti-S-RBD IgG Response in Healthcare Workers: A Comparative Analysis of Homologous and Heterologous SARS-CoV-2 Vaccination Schedules in a 1-Year Serial Cross-Sectional Study.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- Contrasting immune responses in COVID-19: insights from healthcare workers and infected patients on plasmablast, pDC, and NK cell dynamics.Frontiers in immunology · 2025Article
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
backgroundThis study is aimed at providing information about the timing of booster doses and antibody kinetics in healthcare workers.
methodsThis research extends a prospective cohort study conducted at Dokuz Eylul University Hospital in Turkey, covering the period from March 2021 to December 2021. During this timeframe, the antibody levels of the health workers were measured at four different time points. The associations of antibody levels with gender, age, occupation, body mass index (BMI), chronic disease, and smoking were analyzed.
resultsThere was a significant difference between antibody levels in all four blood draws (p < 0.001). Antibody levels decreased in both those vaccinated with BNT162b2 (p < 0.001) and those vaccinated with CoronaVac (p = 0.002) until the fourth blood draw. There was a significant difference between those vaccinated with one and two doses of booster BNT162b2 before the third blood draw (p < 0.001), which continued at the fourth blood draw (p < 0.001). The antibody levels of those with an interval of 41-50 days between two vaccinations decreased significantly at the fourth blood draw (p < 0.001).
conclusionsThis study provides insight into the dynamics and persistence of antibody response after additional COVID-19 vaccine doses among healthcare workers. The longer the interval between booster doses may result in greater antibody levels being maintained over time, allowing for longer durations of protection.
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