APOBEC3B and COVID-19: To investigate potential functional SNPs in APOBEC3 genes involved in COVID-19 severity, we evaluated the COVID-19 association signals around 7 APOBEB3 genes, comprising APOBEC3A, APOBEC3B, APOBEC3C, APOBEC3D, APOBEC3F, APOBEC3G, and APOBEC3H, in the two COVID-19 hospitalization GWASs with European and African ancestries (HGI-B2-EUR and HGI-B2-AFR, respectively).