Which statement is true about the data?

Which statement is true about the data?

• A. The HBV vaccine was licensed in 1982 and the series requires three doses.
• B. The HBV vaccine was licensed in 1990 and the series requires four doses.
• C. The HBV vaccine was licensed in 1982 and the series requires one dose.
• D. The HBV vaccine was licensed in 1975 and the series requires three doses.

Answer: (A)

The key point is that the hepatitis B vaccine requires a three-dose series to establish protection, and historically it was licensed in 1982. The standard immunization schedule is three doses given at 0, 1–2 months, and 6 months. So the statement that the vaccine was licensed in 1982 and the series requires three doses is the accurate reflection of the data. The other options misstate either the licensing year or the number of doses, which is why they’re not correct.

The key point is that the hepatitis B vaccine requires a three-dose series to establish protection, and historically it was licensed in 1982. The standard immunization schedule is three doses given at 0, 1–2 months, and 6 months. So the statement that the vaccine was licensed in 1982 and the series requires three doses is the accurate reflection of the data. The other options misstate either the licensing year or the number of doses, which is why they’re not correct.