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. 2021 Sep 17;12:709759. doi: 10.3389/fimmu.2021.709759

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Copyright © 2021 Tserel, Jõgi, Naaber, Maslovskaja, Häling, Salumets, Zusinaite, Soeorg, Lättekivi, Ingerainen, Soots, Toompere, Kaarna, Kisand, Lutsar and Peterson

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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SARS-CoV-2 antibody levels in asymptomatic (AS), symptomatic (S), and negative control (NC) individuals as measured by (A) CLIA (n= 29 AS, 8 S and 115 NC) and (B) LIPS to N protein (n= 44 AS, 12 S and 115 NC) and (C) LIPS to S-RBD (n= 44 AS, 12 S and 115 NC) 7-8 months after the infection. CLIA is given as a fold difference of sample vs calibrator and LIPS results as the % of the positive control. Statistical differences were calculated with Kruskal-Wallis test with Dunn's multiple comparison testing. The statistical significance on violin plots is marked as **** = adj. P ≤ 0.0001; ns, non-significant.