MARV-inoculated ERBs have limited and subclinical disease characterized by viremia, broad viral tissue dissemination, viral shedding in saliva, feces, and urine, and mild hepatitis characterized by multifocal aggregates of mononuclear cells and mild hepatocellular necrosis with an increase in alanine aminotransferase (ALT) (14, 31, 32, 34, 36, 37). The gene discussed is GPT; the disease is hepatitis A virus infection.