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- Title
Comparison of the Immune Responses to COVID-19 Vaccines in Bangladeshi Population.
- Authors
Sarker, Protim; Akhtar, Evana; Kuddusi, Rakib Ullah; Alam, Mohammed Mamun; Haq, Md. Ahsanul; Hosen, Md. Biplob; Chanda, Bikash Chandra; Haque, Farjana; Alam, Muntasir; Razzaque, Abdur; Rahman, Mustafizur; Ahmed, Faruque; Kibria, Md. Golam; Islam, Mohammed Zahirul; Ahmed, Shehlina; Raqib, Rubhana
- Abstract
Background: The adaptive immune response is a crucial component of the protective immunity against SARS-CoV-2, generated after infection or vaccination. Methods: We studied antibody titers, neutralizing antibodies and cellular immune responses to four different COVID-19 vaccines, namely Pfizer-BioNTech, Moderna Spikevax, AstraZeneca and Sinopharm vaccines in the Bangladeshi population (n = 1780). Results: mRNA vaccines Moderna (14,655 ± 11.3) and Pfizer (13,772 ± 11.5) elicited significantly higher anti-Spike (S) antibody titers compared to the Adenovector vaccine AstraZeneca (2443 ± 12.8) and inactivated vaccine Sinopharm (1150 ± 11.2). SARS-CoV-2-specific neutralizing antibodies as well as IFN-γ-secreting lymphocytes were more abundant in Pfizer and Moderna vaccine recipients compared to AstraZeneca and Sinopharm vaccine recipients. Participants previously infected with SARS-CoV-2 exhibited higher post-vaccine immune responses (S-specific and neutralizing antibodies, IFN-γ-secreting cells) compared to uninfected participants. Memory B (BMEM), total CD8+T, CD4+ central memory (CD4+CM) and T-regulatory (TREG) cells were more numerous in AstraZeneca vaccine recipients compared to other vaccine recipients. Plasmablasts, B-regulatory (BREG) and CD4+ effector (CD4+EFF) cells were more numerous in mRNA vaccine recipients. Conclusions: mRNA vaccines generated a higher antibody response, while a differential cellular response was observed for different vaccine types, suggesting that both cellular and humoral responses are important in immune monitoring of different types of vaccines.
- Subjects
IMMUNE response; ASTRAZENECA PLC; VACCINE effectiveness; PFIZER Inc.; COVID-19 vaccines; HUMORAL immunity; BIONTECH SE; ANTIBODY titer; PSYCHONEUROIMMUNOLOGY
- Publication
Vaccines, 2022, Vol 10, Issue 9, p1498
- ISSN
2076-393X
- Publication type
Article
- DOI
10.3390/vaccines10091498