This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatitis Viruses, Subject name: Microbiology
[{'content': 'Recent hepatitis infection is best diagnosed by: \nSelect and explain. \nA. HBsAg, B. IgG Anti HBe abs, C. Anti HBsAg abs, D. IgM anti HBc abs', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., IgM anti HBc abs(Ref: Ananthanarayan, 9th/e, p. 548 and 8th/e, p. 544)* HBsAg is the first marker to be elevated and Anti HBc.- IgM appears within 1 - 2 weeks after the appearance of HBsAg and lasts for 3 - 6 months.* Diagnostic tests in recent hepatitis B infection are HBsAg detection and HBc.- IgM and overall best is to look out for IgM anti HBc.", 'role': 'assistant'}]