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Effect of Homologous and Heterologous Booster in COVID-19 Vaccination

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Publisher MDPI
Specialty Chemistry
Date 2025 Jan 8
PMID 39770576
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Abstract

COVID-19 became a global health crisis in early 2020, and the way out of the crisis was the rapid development of vaccines by Sinopharm, Pfizer, and Sputnik, among others, which played a crucial role in controlling the pandemic. Therefore, this study aims to investigate the long-term immune response by measuring the levels of anti-S1 IgG antibodies induced by homologous and heterologous vaccination regimens. We investigated the titer of the anti-S1 IgG antibody produced for the viral surface antigen 3, 6 months after the second dose, before the third dose, and 1, 3, and 6 months after the third dose. Anti-S1 IgG antibody levels significantly increased three/six months after the second dose and following the booster in individuals without prior COVID-19 infection who received all three homologous vaccine doses. The group that initially responded poorly to Sinopharm showed a significant and sustained increase after receiving the Pfizer booster. Additionally, prior SARS-CoV-2 infection between primary and booster vaccination boosted anti-S1 antibody titers in all individuals, regardless of the vaccine used. The highest vaccine efficacy was observed during the primary vaccination period and declined over time, especially during the omicron-dominant period. The results suggest that while homologous and heterologous booster doses can significantly enhance anti-S1 IgG antibody levels, prior SARS-CoV-2 infection and the type of vaccine administered influence the duration and magnitude of the immune response.

References
1.
Kanai D, Wakui H, Haze T, Azushima K, Kinguchi S, Kanaoka T . Improved Immune Response to the Third COVID-19 mRNA Vaccine Dose in Hemodialysis Patients. Kidney Int Rep. 2022; 7(12):2718-2721. PMC: 9464310. DOI: 10.1016/j.ekir.2022.09.005. View

2.
Kuloglu Z, El R, Guney-Esken G, Tok Y, Talay Z, Barlas T . Effect of BTN162b2 and CoronaVac boosters on humoral and cellular immunity of individuals previously fully vaccinated with CoronaVac against SARS-CoV-2: A longitudinal study. Allergy. 2022; 77(8):2459-2467. PMC: 9111385. DOI: 10.1111/all.15316. View

3.
Money K, Baber U, Saart E, Samaan S, Sloane J . Blunted Post-COVID-19 Humoral Immunity in Patients With CNS Demyelinating Disorders on Anti-CD20 Treatments. Front Neurol. 2022; 13:843081. PMC: 8905651. DOI: 10.3389/fneur.2022.843081. View

4.
Zhang Y, Ma X, Yan G, Wu Y, Chen Y, Zhou Z . Immunogenicity, durability, and safety of an mRNA and three platform-based COVID-19 vaccines as a third dose following two doses of CoronaVac in China: A randomised, double-blinded, placebo-controlled, phase 2 trial. EClinicalMedicine. 2022; 54:101680. PMC: 9517939. DOI: 10.1016/j.eclinm.2022.101680. View

5.
Markovic-Denic L, Popadic D, Jovanovic T, Bonaci-Nikolic B, Samardzic J, Tomic Spiric V . Developing COVID-19 vaccine recommendations during the pandemic: The experience of Serbia's Expert Committee on Immunization. Front Public Health. 2022; 10:1056670. PMC: 9713902. DOI: 10.3389/fpubh.2022.1056670. View