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. 2021 Sep 27;9:732787. doi: 10.3389/fpubh.2021.732787

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Copyright © 2021 Schiffner, Backhaus, Rimmele, Schulz, Möhlenkamp, Klemens, Zapf, Solbach and Mischnik.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Correlation between anti-SARS-CoV-2-neutralizing antibodies and time after COVID-19 infection. Cross-sectional representation for anti-SARS-CoV-2-neutralizing levels at different time-points for 412 individuals. Each black dot represents one participant and the anti-SARS-CoV-2-neutralizing levels. The red line represents the interpretation line, which shows the negative linear association between the anti-SARS-CoV-2-neutralizing level and the days passed since the diagnosis of COVID-19. The dotted line represents the reference line for the cut-off for having anti-SARS-CoV-2-neutralizing antibodies, which is set at 35.