Figure 2.
Change of interferon-γ-producing T-cell responses to severe acute respiratory syndrome coronavirus 2-specific overlapping peptides in paired samples classified with symptom severities. Spot-forming cells per 5 × 105 peripheral blood mononuclear cells (PBMCs) stimulated with spike protein 1 (S1), spike protein 2 (S2), and nucleocapsid protein (N) at 1 week, 1 month, and 2 months after symptom onset in (A, D, and G), the mild group, (B, E, and H) the moderate group, and (C, F, and I), the severe/critical group. This figure appears in color at www.ajtmh.org.