Serological study for prevalence of Hepatitis B is best done by______________?
Correct answer: A. Surface antigen
- A. Surface antigen
- B. Surface antibody
- C. Core antigen
- D. Core antibody
Explanation
HBsAg is the main screening marker for current hepatitis B infection, so its detection is used to estimate prevalence. Anti-HBs indicates immunity, while core markers are less suitable for routine prevalence screening.
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