GPT and viral pneumonia: Regarding biochemical outcomes in such patients, some authors have already stated that few enzymes serving as indicators are raised aberrantly in the blood of viral pneumonia patients, including α-hydroxybutyrate dehydrogenase (HBDH), gamma glutamyltransferase (GGT), lactate dehydrogenase (LDH), and alanine aminotransferase (ALT), which shows myocardium, liver, and kidney injury.