SARS-CoV-2(13) cytotoxicity(13) COVID-19(11) Health(9) Analysis(8) COVID-19 pandemic(8) molecular(8) A549(7) risk(7) Effect(7) highest(6) pandemic(6) conducted(6) Contamination(6) toxin(6) Compound(5) ranged(5) Structure(5) Antiviral(5) activity(5) antiviral activities(5) complex(5) tested(5) cyanobacteria(5) MCF-7(5) virus(4) Bacteria(4) mycophenolic acid(4) shown(4) gram(4)