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. 2022 Jan 11;23(3):434–439. doi: 10.1016/j.jamda.2021.12.001

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Fig. 1 — Antibody response to SARS-CoV-2 mRNA vaccine in older nursing home residents. (A) Antibody responses in all participants (N = 86) at baseline, 5 weeks, and 6 months after vaccination (top). (B) Antibody responses in SARS-CoV-2–naïve individuals (bottom left). (C) Antibody responses in participants with previous SARS-CoV-2 infection (bottom right).