mRNA Vaccine-Elicited Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)-Specific T Cells Persist at 6 Months and Recognize the Delta Variant.

Woldemeskel, Bezawit A; Garliss, Caroline C; Blankson, Joel N · Clin Infect Dis · 2022

basic_science · Level V

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Abstract

Little is known about the decay kinetics of coronavirus disease 2019 vaccine-elicited severe acute respiratory syndrome coronavirus 2-specific T cells. In this study we show a modest decline in the frequency of these T cells at 6 months and demonstrate robust expansion in response to antigen and recognition of spike peptides from the Delta variant.

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