CD209 and infection: To verify that the observed differences in trans-infection were indeed due to DC-SIGN’s interaction with sugar moieties on the surface of the SARS-CoV-2 virion, we utilized a broad-acting deglycosylase called PNGase F to remove the glycans on the surface of wild-type nCoV-19-strain SARS-CoV-2 pseudotyped virions (Figure S7A).