From a laboratory point of view, COVID-19 liver damage is characterized by higher values of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and, in the cases of bile duct involvement, by cholestasis features (namely, increased alkaline phosphate (ALP) and gamma-glutamyl transferase (GGT)), as recorded both in Wuhan and during the later pandemic waves in China [21,22]. This evidence concerns the gene GPT and cholestasis.