Study on Adverse Reaction and Immune Persistence after Immunization of Domestic and Imported Hepatitis A Inactivated Vaccines among Healthy Children

Objective This study aimed to investigate the safety and immune persistence of domestic and imported hepatitis A inactivated vaccines. Methods 325 healthy children who received immunization services in Baoji Maternal and Child Healthcare Hospital from January to March,2009 were chose and divided into domestic-vaccine group( 178) and imported-vaccine group( 147) for the observation of adverse reaction within 48 hours after immunization and the...