GPT and COVID-19: Several investigations have found that COVID-19 patients had abnormal aminotransferase levels.26,27,28 According to a cohort analysis of 1,099 COVID-19 cases, 21.3% had elevated alanine aminotransferase levels, and 22.2% had elevated aspartate aminotransferase levels.17 In our COVID-19 participants, elevated aspartate aminotransferase and alanine aminotransferase levels were also observed.