[The study on the 0, 12 month vaccination schedule' of Healive inactivated hepatitis A vaccine in children].

Objective: To evaluate the safety, immunogenicity and fit dosage of Healive inactivated hepatitis A vaccine (HAV) in children.

Methods: A total of 85 susceptible aged 4 - 10 years with HAV seronegative children, had been enrolled from two adjacent villages in a county. The volunteers were randomized allocated into two groups and to receive a priming dose of 250 U/0.