related tags: 2019ncov 2019novelcoronavirus 270F06 5F1905 77983A 86C60C 8C0100 A75308 D99E0F F64F00 FFC700 covid19 nationalinstituteofallergyandinfectiousdiseases ncov ncov2019 niaid niaidintegratedresearchfacility nih novelcoronavirus sarscov2 ukb117variant 380700