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
The serological marker of acute Hepatitis B infection is - 
Select and explain. 
A. HBsAg + HBeAg, B. HBsAg-Core antibody, C. HBsAg, D. HBeAg
B: HBsAg-Core antibody
Answer: B: HBsAg-Core antibody 
Explanation: Ans. is 'b' i.e., HBsAg+Core antibody In acute hepatitis following serological markers are present:HBsAgIgM anti HBc Ag (in recent infection) or IgG anti HBc Ag (in remote infection).HBe Ag (with high infectivity) or Anti HBe Ag (with low infectivity). HBsAgAnti HBs AgHBe AgAnti HBe AgAnti HBc AgAcute HBV (high infecti vity)+ + IgMAcute HBV (low infecti vity)+ +IgMChronic HBV (high infectivity)+ + IgGChronic HBV (low infectivity)+ +IgGRecovery' + +IgGImmunized +