This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'A 10-year-old boy is brought into the casualty with yellow sclera, dark urine and abdominal discomfo. The liver function tests reveal serum transaminase levels of 2100 IU/L. Which of the following is the most accurate statement about probable complications? \nSelect and explain. \nA. Significant likelihood of hepatocellular carcinoma, B. About a 10 percent chance of a chronic carrier state, C. Almost no chance of long-term sequelae, D. Long-term complications require interferon therapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: This is most likely hepatitis A infection, which carries a very low chance of long-term sequelae. Chronic hepatitis such as that seen with hepatitis B is very rare. In HAV infection, an incubation period of 15-45 days (mean 25 days) is usually followed by fever; anorexia (poor appetite); nausea; pain in the right upper abdominal quadrant; and, within several days, jaundice. Dark urine and clay-colored stools may be noticed by the patient 1 to 5 days before the onset of clinical jaundice. The liver is enlarged and tender, and serum aminotransferase and bilirubin levels are elevated as a result of hepatic inflammation and damage. Recovery occurs in days to weeks. Ref: Ray C.G., Ryan K.J. (2010). Chapter 13. Hepatitis Viruses. In C.G. Ray, K.J. Ryan (Eds), Sherris Medical Microbiology, 5e.', 'role': 'assistant'}]