The SARS-CoV-2 Pseudoviral Particles are replication-deficient Maloneymurine leukemia virus (MLV) pseudotyped with the SARS-CoV-2 spike protein of the UK variant B.1.1.7 (or known as 201/501Y.V1, VOC 202012/01) (GISAID sequence accession number: EPI_ISL_601443).