When we compared the ferritin, AST, ALT levels, and AT2R A1675G gene polymorphism, ferritin, AST, and ALT levels of the COVID-19 patients without lung involvement with GG genotype were 374.7 ± 412.3 ng/mL, 44.6 ± 24.6 IU/L, and 41.2 ± 15.7 IU/L, with AG genotype were 148.0 ± 179.0 ng/mL, 29.3 ± 9.42 IU/L, and 26.0 ± 12.2 IU/L, and with AA genotype were 297.9 ± 362.6 ng/mL, 29.9 ± 14.1 IU/L, and 27.8 ± 16.1, respectively. Here, GPT is linked to COVID-19.