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. 2023 Apr 25;14:1159351. doi: 10.3389/fimmu.2023.1159351

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Copyright © 2023 Rosi-Schumacher, Baker, Waris, Seiffert-Sinha and Sinha

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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PV-HLA Associations Reported by Country. Known HLA associated alleles as reported by country. Significant overlap is seen between DRB1*0402 (A) and DQB1*0302 (B) as these alleles have previously been shown to be in linkage disequilibrium. DQB1*0503 (C) is seen throughout the world but is notably concentrated in eastern and southern Asia. DRB1*14 (D) is seen diffusely throughout the eastern hemisphere as well as South America. Lastly, DRB1*0804 (E) has been more rarely reported in PV but has been noted in Egypt and Brazil.