Specifically, Dirican and colleagues [43] by Sanger sequencing of two specific genes, ATPase6 and Cytb, found that COVID-19 patients displayed more A8860G and G9055A substitutions in the ATPase6 gene and more A15326G, T15454C, and C15452A changes in the Cytb gene. This evidence concerns the gene MT-CYB and COVID-19.