Hepatitis B vaccination is given to a patient. His serum will reveal:
High-Yield Explanation
Ans. is 'b' i.e., Anti HBsAg (Ref: Ananthanarayan, 9th/e, p. 548 and 8th/e, p. 543)* Anti HBsAg is protective antibody.* It is the only serological marker, present after immunization.