GPT and Hepatitis: 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).