id author title date pages extension mime words sentences flesch summary cache txt cord-282539-skzosh6u Casadevall, Arturo Implications of Coronavirus Disease 2019 (COVID-19) Antibody Dynamics for Immunity and Convalescent Plasma Therapy 2020-08-17 .txt text/plain 1588 75 45 The article by Wang et al in this issue of Clinical Infectious Diseases reports that neutralizing antibody titers to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus peak 4-5 weeks after the onset of symptoms and decline by 3 months [1] . The decline in neutralizing antibody titers measured by Wang et al [1] in 93.5% of the patients studied is concerning for it raises the possibility that like other coronaviruses, COVID-19 may not result in the establishment of long lasting immunity. Whereas implications of the kinetics of the antibody response to SARS-CoV-2 for long-lasting and vaccine-mediated immunity are uncertain, the results of Wang et al [1] are important for the development and use of antibody therapies. The finding that SARS-CoV-2 neutralizing titers declined relatively quickly in the Wang et al study [1] means that efforts to collect convalescent plasma with high titers of neutralizing antibody for therapy and hyper-immune globulin preparation need to be highly organized such that potential donors are contacted early in the weeks following COVID-19. ./cache/cord-282539-skzosh6u.txt ./txt/cord-282539-skzosh6u.txt