At the age of 4 years and 2 months, she developed pneumonia, and her blood aspartate aminotransferase (AST, 720 IU/L), alanine aminotransferase (ALT, 335 IU/L), lactate dehydrogenase (LDH, 974 IU/L), ammonia (565 μmol/L), and arginine (1049 μmol/L) levels were dramatically elevated. This evidence concerns the gene GPT and susceptibility to pneumonia measurement.