SARS-CoV-2 mRNA vaccine BNT162b2 elicited a robust humoral and cellular response against SARS-CoV-2 variants.
Research Square (Research Square)(2021)
Abstract
Abstract BNT162b2 vaccine was introduced in Italy on 27th December 2020 and healthcare workers were rapidly vaccinated. In this study, we demonstrated that one vaccine dose was sufficient for eliciting a sustained humoral and cell-mediated response in SARS-CoV-2 experienced healthcare workers but had a lower effect in SARS-CoV-2 naïve subjects. However, 98% naïve subjects developed both neutralizing antibodies and Spike-specific T-cells after the second dose. Moreover, the antibody and T-cell responses were effective against viral variants since a partial reduction in antibody response was observed only against the South-African variant in SARS-CoV-2 naïve individuals, while the T-cell response was less affected.
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Key words
mrna vaccine bnt162b2,sars-cov
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