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': 'In a patient of active chronic hepatitis B all are seen except: \nSelect and explain. \nA. HbsAg, B. IgM anti-HBcAg, C. HbeAg, D. Anti-HbsAg', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) IgM anti-HBcAg Marker of chronic active hepatitis: HBsAg+, IgG anti-HBcAg, HBV DNA+, HBeAg+ There is confusion in option d (Anti-HbsAg) also: Harrison 17/e, p 1943 writes: - 10-20% of person with chronic HBV infection may harbor low level Anti-HBs. This antibody is', 'role': 'assistant'}]