The spike protein has been proposed as a therapeutic target due to its function in binding to ACE2 (angiotensin-converting enzyme 2) and host cell infection [4,5,6], whereas the N protein is associated with viral replication/transcription, the formation and maintenance of the ribonucleoprotein complex (RNP) [7], the assembly of virions by the interaction with the M protein, and the regulation of the viral cycle in the host cell [8]. Here, ACE2 is linked to infection.