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abstractpubmed· Abstract 2021· item PMID:33050983
Waning Antibody Responses in Asymptomatic and Symptomatic SARS-CoV-2 Infection. We investigated the kinetics of severe acute respiratory syndrome coronavirus 2 neutralizing antibodies in 7 asymptomatic persons and 11 patients with pneumonia. The geometric mean titer of neutralizing antibodies declined from 219.4 at 2 months to 143.7 at 5 months after infection, indicating a waning antibody response.