To investigate the virological properties of a SARS-CoV-2 variant, Omicron BA.1, we generated chimeric recombinant viruses that express GFP and encodes a variety of S genes. To verify the genome seque
Gene expression of nonsegmented negative-sense RNA viruses involves sequential synthesis of monocistronic mRNAs and transcriptional attenuation at gene borders resulting in a transcript gradient. To a
aDesignated name of virus.bOriginating bacterial artificial chromosome clone used in which the fluorescent protein was fused to UL47 and its original publication.cFinal history of modifications in the