According to previous reports, the incidence of liver injury ranges from 14.8 to 53% in COVID-19 patients (Xu et al., 2020) and can reach up to 78% in severe COVID-19 patients (Zhang et al., 2020), which is mainly manifested by abnormal concentrations of aspartate aminotransferase and alanine aminotransferase. Here, GPT is linked to COVID-19.