To assess Measles Mumps and Rubella Combined Vaccine, Live, (MMR) lot-to-lot consistency in healthy Chinese Children at the age of 8-12 months, and the participants randomized to receive one injections of 0.5 mL Measles, Mumps and Rubella Combined Vaccine, Live at day 0.
To evaluate the immunogenicity, lot-to-lot consistency and safety of three consecutive batches of Measles, Mumps and Rubella Combined Vaccine, Live.