Evaluation of residual antibody after 24 months of hepatitis A vaccination (HAVAX)

Persistence of antibody against hepatitis A virus has been studied in 30 healthy adults at 24th month after receiving a three doses schedule of hepatitis A vaccine (Havax). Results: Residual level in all subjects was higher than protective level (≥ 20mIU/ml). The GMT was higher than the protective level (831,5mIU/ml) 40 times and 100% people injected remained protective antibody.