SARS-CoV-2(15) RNA(13) the SARS-CoV-2(8) Human(7) SARS-CoV-2 transcriptome(7) Mutation(7) Host(7) Viral RNA(6) sequence(6) Transcriptome(6) COVID-19(6) Evidence(6) coronavirus(6) viral genome(5) Variability(5) Analysis(5) animals(4) D614G(4) Evolution(4) Critical(4) SARS-COV-2 infection(4) Cross-species transmission(4) SARS-CoV-2 variant(4) raise(4) angiotensin-converting enzyme 2(4) Receptor-binding domain(4) humans(4) receptor(4) S protein(4) Sequence alignment(4)