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Background
There is incomplete information regarding evolution of antibody titers against SARS‐CoV‐2 after a two‐dose strategy vaccination with BNT162b2 in older adults in long‐term care facilities (LTCFs) with frailty, disability, or cognitive impairment. We aimed to determine IgG antibody titer loss in older adults in LTCFs.
Methods
This is a multicenter longitudinal cohort study including 127...
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