This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver & Biliary Tract, Subject name: Pathology
[{'content': 'A 42-year-old man experiences malaise and increasing icterus for 2 weeks. Physical examination shows jaundice, but there are no other significant findings. Serologic test results are positive for IgM anti-HAV and negative for anti-HCV, HBsAg, and IgM anti-HBc. Which of the following outcomes is most likely to occur in this man? \nSelect and explain. \nA. Chronic active hepatitis, B. Complete recovery, C. Fulminant hepatitis, D. Hepatocellular carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The detection of IgM anti-HAV indicates acute infection. Progression of HAV infection to chronic hepatitis does not occur, but a few cases are complicated by fulminant hepatitis. HAV viremia is transient, so blood-borne transmission of HAV is rare. HAV is spread by the fecal-oral route, such as raw shellfish from a bay in which raw sewage is dumped.', 'role': 'assistant'}]