Count on us: T cells in SARS-CoV-2 infection and vaccination.

Kedzierska, Katherine; Thomas, Paul G · Cell Rep Med · 2022

review · Level V

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Abstract

Robust T cell responses have been associated with milder outcomes in many infections. T cells also establish long-term memory pools and, as they are predominantly directed toward epitopes encompassing conserved peptides, can respond to SARS-CoV-2 variants, including Omicron. Here, we discuss epitope-specific CD8<sup>+</sup> and CD4<sup>+</sup> T cell responses toward SARS-CoV-2 infection and vaccination, their subsequent persistence into long-term memory, and ongoing work to determine their role in limiting disease severity.

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