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. 2022 Sep 27;251:38–46. doi: 10.1016/j.imlet.2022.09.007

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© 2022 Published by Elsevier B.V. on behalf of European Federation of Immunological Societies.

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Fig 1 — Frequency of SARS-CoV-2 M, N, S, S1 protein-reactive T cells detected in PBMCs of convalescent COVID-19 patients and healthy individuals.

Frequency of IFN-γ, IL-2 and TNF-α expressing CD4⁺or CD8⁺T cells detected after stimulation with respective SARS-CoV-2 M, N and S/S peptide mixes among T cells from convalescent COVID-19 patients and HI. Each closed black circles represent a single measurement of one convalescent COVID-19 patients. Each gray triangle represent a single measurement of one HI. Symbols and bars represent median and range. Statistically significant differences (p < 0.05) between groups of antigen-reactive T cells are indicated with horizontal bars and *. Highly statistical differences (p < 0.01) are indicated with horizontal bars and **.