GPT and Acute hepatitis: The World Health Organization (WHO) and The European Center for Disease Prevention and Control (ECDC) have presented a common case definition defining a probable case of acute hepatitis of unknown origin as a person presenting with acute hepatitis (non-hepatitis viruses A, B, C, D, and E) with serum transaminase levels >500 IU/L (AST or ALT), who is 16 years and younger, since October 1, 2021 [1,2].