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Immune response after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination. (A) Response rate of antibody. (B) Anti-spike protein antibody (anti-S) level for positive patients; *P=0.0099, **P=0.0178, ***P=0.0025. (C) Cellular response rate. (D) Interferon-γ (IFN-γ) level for positive patients, *P=0.0115, **P=0.0414, ***P=0.0180. (E) Correlation between anti-S and IFN-γ levels.
