“…30 SARS-CoV-2 N protein is involved in various cellular processes, such as viral outgrowth, RNA replication, and mRNA transcription. 31 Both S and N proteins are immunogenic and abundantly expressed during viral assembly. 32 However, it has been shown that testing for the N antigen yields better detection sensitivity than the S antigen, 33 and thus most of the current antigen tests are performed based on the N antigen.…”