ABO and COVID-19: Of the nine genes found in the international meta-GWAS comparing all COVID-19 patients with the general population, three were replicated in the Japanese GWAS: FOXP4-AS1, ABO, and IFNAR2. The SNPs that exist in these three genetic regions met the genome-wide significance level in the integrated analysis, but none of the SNPs in the IFNAR2 genetic region were significant (P > 0.05) in the Japanese GWAS.