GPT and Pleural effusion: Statistically significant differences were observed between the two groups in fever duration, peak fever, atelectasis, pleural effusion, MP infection (pharynx and BAL), maximum neutrophils percentage (N%max), lymphocytes (L%max), eosinophilic granulocytes (E%max), platelet minimum, alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase (LDH).