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. 2024 Oct 18;14:24512. doi: 10.1038/s41598-024-75514-x

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — Autoantibody results and thresholds for antigens examined in the second subset. Stacked bar chart (a) shows group sizes by vaccine type. Scatterplots (b) show measurement results for PF4, PF4 complex, APS screening, ApoH (B2-Gp1), and cardiolipin. Dashed lines are results obtained from positive controls, or in the case of APS screening, the positivity threshold defined by the kit (in GPL units; 1 GPL is accepted to equate to 1 µg of relevant antibody). Abbreviations: BD: blood donor, AEFI: adverse events following immunization, Coag: coagulation-related, Cov-exp: COVID-19-exposed AEFI group, ApoH: Apolipoprotein H, B2-Gp1: β2-glycoprotein 1, PF4: platelet factor 4, APS antiphospholipid syndrome, MPL: IgM phospholipid units, GPL: IgG phospholipid units.