SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; RNA, ribonucleic acid; COVID-19, coronavirus disease 2019; UV, ultraviolet light; LED, light-emitting diode; ORF 1a, open reading frame 1a of SARS-CoV-2; Spike, spike protein of SARS-CoV-2; ND, not done. This evidence concerns the gene GDI1 and COVID-19.