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. 2021 Oct 18;22(20):11211. doi: 10.3390/ijms222011211

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Analysis of anti-SARS-CoV-2 antibodies in sera of convalescent COVID-19 and SputnikV immunized individuals. SputnikV immunized sera (40 samples) were collected on Day 0 (D0; green bar), Day 21 (D21; blue bar) and Day 42 (D42; purple bar) after immunization. Sera from convalescent COVID-19 patients (40 samples; red bar) were collected between 32 and 65 days after the first symptoms (median 42.0 ± 11.1 days). Anti-SARS-CoV-2 IgM, IgG and IgA antibodies were detected using the Coronapass ELISA kit (BioPalitra, NextGene Russia). Sera from the same individuals before immunization was used as control. Data are presented as Mean ± SEM (standard error of the mean). Y-axis shows OD₄₅₀ values (Coronapass ELISA kit; BioPalitra, NextGene Russia * statistical significance).