- Hepatitis A
- Vaccine Recommendations
What are the hepatitis A vaccines (HepA) that are approved for use in the United States?
| Recommended dosages and schedules of hepatitis A vaccines | |||||
| Vaccine | Age group | Dose | Volume | # Doses | Schedule |
| Havrix (GSK) |
1–18 years | 720 El.U.* | 0.5 ml | 2 | 0, 6–12 mos. |
| 19 years and older | 1440 El.U.* | 1.0 ml | 2 | 0, 6–12 mos. | |
| Vaqta (Merck & Co.) |
1–18 years | 25 U** | 0.5 ml | 2 | 0, 6–18 mos. |
| 19 years and older | 50 U** | 1.0 ml | 2 | 0, 6–18 mos. | |
*El.U. = Elisa Units **U = Units
| Combination vaccine using hepatitis A and hepatitis B vaccines | |||||
| Vaccine | Age group | Antigens used | Volume | # Doses | Schedule |
| Twinrix (GSK) |
18 years and older | Havrix (720 El.U.) combined with Engerix-B (20 mcg) |
1.0 ml | 3 | 0, 1, 6 mos. |
| 4 | 0, 7, 21-30 days, 12 months** | ||||
** Accelerated schedule may be used for rapid protection prior to travel or for rapid protection of an unexposed but at-risk person who also would benefit from hepatitis B protection. Twinrix is not recommended for use as post-exposure prophylaxis.
Last reviewed:
June 25, 2023