The study demonstrated an alteration in serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), and gamma glutamylaminotransferase (GGT) in patients who developed long-term COVID-19, particularly those admitted to hospital during the acute phase, with persistent liver damage 1.5 years after recovery from the COVID-19 acute phase. This evidence concerns the gene GPT and COVID-19.