Freeze-dried hepatitis a attenuated live vaccine and its stabilizer

摘要

The present invention relates to hepatitis A vaccine, especially to a lyophilized attenuated hepatitis A vaccine which can be stored at ambient temperature for a long time, and to a method for producing the same. The present invention further relates to a stabilizer for lyophilized live vaccine and its use in improving thermostability of lyophilized live vaccine during lyophilization precessing and storage period after lyophilization.