HLA-C and infection: To address this limitation, we also included in the GRS five additional variants (in/near MHC, DPP9, IFNAR2, RPL24 and FOXP4) that (1) had an association with risk of infection at P < 5 × 10−8 in published GWAS or by the HGI; and (2) were associated with worse disease outcomes among infected individuals in our data (Supplementary Tables 15 and 16), albeit at the suggestive level with current sample sizes.