How are the doses of Heplisav-B administered?

Heplisav-B is a vaccine used for the prevention of hepatitis B virus infection. The correct administration of Heplisav-B involves two doses for individuals aged 18 and older. The first dose is followed by a second dose that is given at least one month later. This two-dose schedule is designed to ensure adequate immune response while providing a more efficient regimen compared to the traditional three-dose series commonly associated with other hepatitis B vaccines.

The other options do not accurately represent the dosing schedule for Heplisav-B. For example, a single dose at birth is associated with the universal vaccination strategy against hepatitis B in newborns but does not pertain to Heplisav-B specifically for adults. Likewise, the suggestion of one dose at 6 months or a three-dose schedule spread over a year applies to other hepatitis B vaccines but not to Heplisav-B, confirming that the vaccine's two-dose regimen is specifically intended to improve compliance and efficacy among the adult population.