“…The SARS-CoV-2 virus is considerably larger than the size of the average cellular messenger RNA (mRNA; ~2000–5000 nt), but like single-stranded mRNA, appears to be intrinsically susceptible to complementary base-pair interaction with other ssRNAs, including sncRNA and miRNA (this interaction also involves RNA binding ribonucleoproteins and Argonaute (AGO) proteins, which guide the repression of mRNA targets [ 17 , 22 , 23 , 24 , 25 , 26 , 27 ].). For example, the first report for the affinity of any miRNA for the SARS-CoV-2 RNA genome was for the 23 nt human miRNA hsa-miRNA-5197-5p (encoded at chr 5q31.3; 5′-CAAUGGCACAAACUCAUUCUUGA-3′; accessed on 15 June 2021) that is over 90% homologous to a 3′ down-stream region of the SARS-CoV-2 RNA sequence [ 15 , 16 , 24 , 25 , 26 ]. Subsequent RNA sequencing and other studies have shown that at least ~160, 18–22 nt naturally occurring human miRNAs have perfect complementarity in the miRNA-mRNA ‘ seed region ’ to the single-stranded SARS-CoV-2 RNA genome; the top human host miRNA candidates targeting the SARS-CoV-2 ssvRNA genome include those of the miRNA-16, miRNA-21, miRNA-29a/b, let-7b, let-7e, miRNA-122, miRNA-146a microRNA families and others [ 17 , 24 , 25 , 26 , 27 , 28 ].…”