White blood cell, red blood cell, platelet, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, blood lipids, prothrombin time, activated partial thromboplastin time, immunoglobulin, complement, antinuclear antibody, myeloperoxidase, protease 3, and hepatitis B markers were normal (Table 2). Here, MPO is linked to hepatitis A virus infection.