Emerging infectious diseases · 2020 · 138 citations · 8 references
Geometric Mean TiterViral PersistenceViral DiagnosticsRespiratory DiseasesAsymptomatic PersonsImmunologyRespiratory InfectionVirologyInfectious Respiratory DiseaseAntibody ResponseChronic Viral InfectionMedicineAntibody ResponsesCovid-19
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.
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