Marker of Infectivity of Hepatitis B is:-: (A) HBsAg, (B) HBeAg, (C) Anti HBs, (D) Anti HBs
Answer is B. HBsAg first antigen to appear, epidemio marker ( Australian antigen ) HBcAg - Rarely appears in plasma HBeAg - Marker of infectivity 1st Ab to appearance - Anti HBC Ab - acute hepatitis IgM Anti HBe - Marker of good prognosis Anti HBs - End of communicability and vaccinated.