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. 2022 Apr 29;13:876037. doi: 10.3389/fimmu.2022.876037

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Copyright © 2022 Liang, Xu, Jia, Wu, Liu, Lin, Liu and Yang

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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Kinetics of antibodies in the vaccination schedule. The levels of neutralizing antibody (A), anti-RBD total antibody (B), anti-Spike IgG (C), anti-Spike IgM (D), and anti-Spike IgA (E) in 32 participants were measured at 18 serial time points over 368 days. The antibody-positive judgement threshold is marked with a line.