However, a recent study on the comparison of the clinical features between COVID-19 patients and non-SARS-CoV-2 virus-infected pneumonia cases demonstrated that COVID-19 patients had higher levels of aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, γ-glutamyl transpeptidase and α-hydroxybutyric dehydrogenase [23]. Here, GPT is linked to COVID-19.