In the routine Hep B vaccination schedule, how many doses are included in the basic series?

In the routine Hep B vaccination schedule, how many doses are included in the basic series?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (C)

The basic Hepatitis B vaccination series for routine infancy consists of three doses. The first dose is given at birth to begin protection, the second dose is given around 1–2 months after the first, and the third dose is given at 6–18 months. These three shots work together to build and solidify protective antibodies against hepatitis B, with the third dose ensuring long-lasting immunity. Missing any dose can leave protection incomplete, so completing all three is important. (There is a two-dose option used in some adult vaccination programs, but the standard routine schedule for infants is three doses.)

The basic Hepatitis B vaccination series for routine infancy consists of three doses. The first dose is given at birth to begin protection, the second dose is given around 1–2 months after the first, and the third dose is given at 6–18 months. These three shots work together to build and solidify protective antibodies against hepatitis B, with the third dose ensuring long-lasting immunity. Missing any dose can leave protection incomplete, so completing all three is important. (There is a two-dose option used in some adult vaccination programs, but the standard routine schedule for infants is three doses.)