how long is hepatitis a vaccine good for
1 For healthy persons aged 12 monthsâ40 years, single-antigen Hepatitis A vaccine at the age-appropriate dose is preferred to IG because of the vaccineâs advantages, including long-term protection and ease of administration, as well as the equivalent efficacy of vaccine to IG.
Previously, Hepatitis A vaccination was recommended to be administered at least 2â4 weeks before departure to an area with intermediate or high rates of Hepatitis A. Travelers who were departing in less than 2 weeks were recommended to receive receive immune globulin (IG) for short-term protection.